# SimilarItemsRecommender **`class SimilarItemsRecommender`** recommend_on_item | Recommend other items based on provided item-id’s **`pydantic model PluginConfig`** Fields - `item_ids (list[str])` - `target_fields (list[str])` **`PluginConfig.plugin_name: ClassVar[str] = 'recommend_on_item'`** Used to register and reference the plugin within a query. **`field PluginConfig.target_fields: list[str] = ['title', 'body', 'nlp_tag__phrases']`** Target fields that are used to perform tf-idf similarity matching on. **`field PluginConfig.item_ids: list[str] [Required]`** Whitespace separated list of item ids used to recommend similar items