diff --git a/app/src/main/java/com/anytypeio/anytype/di/feature/widgets/SelectWidgetSourceDI.kt b/app/src/main/java/com/anytypeio/anytype/di/feature/widgets/SelectWidgetSourceDI.kt
index d6d841d339..2d7764728e 100644
--- a/app/src/main/java/com/anytypeio/anytype/di/feature/widgets/SelectWidgetSourceDI.kt
+++ b/app/src/main/java/com/anytypeio/anytype/di/feature/widgets/SelectWidgetSourceDI.kt
@@ -6,6 +6,7 @@ import com.anytypeio.anytype.di.common.ComponentDependencies
 import com.anytypeio.anytype.domain.base.AppCoroutineDispatchers
 import com.anytypeio.anytype.domain.block.interactor.sets.GetObjectTypes
 import com.anytypeio.anytype.domain.block.repo.BlockRepository
+import com.anytypeio.anytype.domain.debugging.Logger
 import com.anytypeio.anytype.domain.misc.UrlBuilder
 import com.anytypeio.anytype.domain.objects.StoreOfObjectTypes
 import com.anytypeio.anytype.domain.primitives.FieldParser
@@ -51,6 +52,7 @@ interface SelectWidgetSourceDependencies : ComponentDependencies {
     fun analyticsHelper(): AnalyticSpaceHelperDelegate
     fun searchObjects(): SearchObjects
     fun fieldParser(): FieldParser
+    fun logger(): Logger
 }
 
 @Module
diff --git a/domain/src/main/java/com/anytypeio/anytype/domain/widgets/GetSuggestedWidgetTypes.kt b/domain/src/main/java/com/anytypeio/anytype/domain/widgets/GetSuggestedWidgetTypes.kt
index 0994ab1c2c..4d3241cba2 100644
--- a/domain/src/main/java/com/anytypeio/anytype/domain/widgets/GetSuggestedWidgetTypes.kt
+++ b/domain/src/main/java/com/anytypeio/anytype/domain/widgets/GetSuggestedWidgetTypes.kt
@@ -1,9 +1,16 @@
 package com.anytypeio.anytype.domain.widgets
 
+import com.anytypeio.anytype.core_models.Block
 import com.anytypeio.anytype.core_models.DVFilter
+import com.anytypeio.anytype.core_models.DVFilterCondition
 import com.anytypeio.anytype.core_models.Id
+import com.anytypeio.anytype.core_models.ObjectType
+import com.anytypeio.anytype.core_models.ObjectTypeUniqueKeys
 import com.anytypeio.anytype.core_models.ObjectWrapper
+import com.anytypeio.anytype.core_models.Relations
+import com.anytypeio.anytype.core_models.ext.asMap
 import com.anytypeio.anytype.core_models.primitives.Space
+import com.anytypeio.anytype.core_models.primitives.SpaceId
 import com.anytypeio.anytype.domain.base.AppCoroutineDispatchers
 import com.anytypeio.anytype.domain.base.ResultInteractor
 import com.anytypeio.anytype.domain.block.repo.BlockRepository
@@ -16,13 +23,34 @@ class GetSuggestedWidgetTypes @Inject constructor(
 
     override suspend fun doWork(params: Params): List<ObjectWrapper.Type> {
 
-        // TODO DROID-3438 open widget object preview and filter out existing object types
+        val alreadyUsedObjectTypes = getAlreadyUsedTypes(
+            space = params.space,
+            widgets = params.ctx
+        )
 
         val types = repo.searchObjects(
             space = params.space,
             limit = DEFAULT_LIMIT,
-            filters = params.objectTypeFilters,
-            keys = params.objectTypeKeys
+            keys = params.objectTypeKeys,
+            filters = buildList {
+                addAll(params.objectTypeFilters)
+                if (alreadyUsedObjectTypes.isNotEmpty()) {
+                    add(
+                        DVFilter(
+                            relation = Relations.ID,
+                            condition = DVFilterCondition.NOT_IN,
+                            value = alreadyUsedObjectTypes
+                        )
+                    )
+                }
+                add(
+                    DVFilter(
+                        relation = Relations.UNIQUE_KEY,
+                        condition = DVFilterCondition.NOT_EQUAL,
+                        value = ObjectTypeUniqueKeys.OBJECT_TYPE
+                    )
+                )
+            }
         ).map { result ->
             ObjectWrapper.Type(result)
         }
@@ -30,8 +58,39 @@ class GetSuggestedWidgetTypes @Inject constructor(
         return types
     }
 
+    private suspend fun getAlreadyUsedTypes(space: SpaceId, widgets: Id) : List<Id> {
+        val result = mutableListOf<Id>()
+
+        runCatching {
+            val preview = repo.getObject(space = space, id = widgets)
+
+            val map = preview.blocks.asMap()
+
+            map.getOrDefault(widgets, emptyList()).forEach { block ->
+                if (block.content is Block.Content.Widget && block.children.isNotEmpty()) {
+                    val link = preview.blocks.find { it.id == block.children.first() }
+                    val content = link?.content
+                    if (content is Block.Content.Link) {
+                        val source = preview.details.getOrDefault(
+                            content.target,
+                            emptyMap()
+                        )
+                        val wrapper = ObjectWrapper.Basic(source)
+                        if (wrapper.layout == ObjectType.Layout.OBJECT_TYPE) {
+                            result.add(wrapper.id)
+                        }
+                    }
+                }
+            }
+        }
+
+        return result.distinct()
+    }
+
+
     data class Params(
         val space: Space,
+        val ctx: Id,
         val objectTypeFilters: List<DVFilter>,
         val objectTypeKeys: List<Id>
     )
diff --git a/presentation/src/main/java/com/anytypeio/anytype/presentation/search/ObjectSearchConstants.kt b/presentation/src/main/java/com/anytypeio/anytype/presentation/search/ObjectSearchConstants.kt
index e82b9b4305..08c4ac6fa7 100644
--- a/presentation/src/main/java/com/anytypeio/anytype/presentation/search/ObjectSearchConstants.kt
+++ b/presentation/src/main/java/com/anytypeio/anytype/presentation/search/ObjectSearchConstants.kt
@@ -771,7 +771,7 @@ object ObjectSearchConstants {
         recommendedLayouts: List<ObjectType.Layout> = emptyList(),
         excludedTypeKeys: List<TypeKey> = emptyList(),
         excludeParticipant: Boolean = true,
-        excludeTemplates: Boolean = true
+        excludeTemplates: Boolean = true,
     ): List<DVFilter> {
         return buildList {
             addAll(
diff --git a/presentation/src/main/java/com/anytypeio/anytype/presentation/widgets/SelectWidgetSourceViewModel.kt b/presentation/src/main/java/com/anytypeio/anytype/presentation/widgets/SelectWidgetSourceViewModel.kt
index 20309047b1..459b90d3ba 100644
--- a/presentation/src/main/java/com/anytypeio/anytype/presentation/widgets/SelectWidgetSourceViewModel.kt
+++ b/presentation/src/main/java/com/anytypeio/anytype/presentation/widgets/SelectWidgetSourceViewModel.kt
@@ -146,7 +146,7 @@ class SelectWidgetSourceViewModel(
             target = target,
             isInEditMode = isInEditMode
         )
-        proceedWithSearchQuery()
+        proceedWithSearchQuery(ctx)
     }
 
     fun onStartWithExistingWidget(
@@ -164,10 +164,10 @@ class SelectWidgetSourceViewModel(
             type = type,
             isInEditMode = isInEditMode
         )
-        proceedWithSearchQuery()
+        proceedWithSearchQuery(ctx)
     }
 
-    private fun proceedWithSearchQuery() {
+    private fun proceedWithSearchQuery(ctx: Id) {
         viewModelScope.launch {
             getSuggestedWidgetTypes.async(
                 params = GetSuggestedWidgetTypes.Params(
@@ -182,7 +182,8 @@ class SelectWidgetSourceViewModel(
                         )
                         addAll(ObjectSearchConstants.filterTypes())
                     },
-                    objectTypeKeys = ObjectSearchConstants.defaultKeysObjectType
+                    objectTypeKeys = ObjectSearchConstants.defaultKeysObjectType,
+                    ctx = ctx
                 )
             ).onSuccess { types ->
                 suggested.value = types.map { type ->