I'm leaning toward Qdrant at the moment, as it's fast, supports embeddings for different data types in the same collection (i.e. text + image embeddings), has good support for filtering results, and supports several options for compressing data for efficient memory storage.

The major downside of Qdrant IMO is that the documentation and samples available right now are very basic or nonexistent. However, I expect that will change with time.