Vector stores & vector databases

• Chroma
• Weaviate
• Pinecone
• Milvus
• Redis
• ElasticSearch
• Drant
• pgVector
• Faiss

Graph databases

Neo4j

The fastest path to graph. Centered around the leading native graph database, today's Neo4j Graph Data Platform is a suite of applications and tools helping the world make sense of data.

• https://neo4j.com

Amazon Neptune

Amazon Neptune is a fast, reliable, fully-managed graph database service that makes it easy to build and run applications that work with highly connected datasets. The core of Amazon Neptune is a purpose-built, high-performance graph database engine optimized for storing billions of relationships and querying the graph with milliseconds latency.

• https://aws.amazon.com/neptune/

Azure Cosmos DB

Provides native support for NoSQL choices, offers multiple well-defined consistency models, guarantees single-digit-millisecond latencies at the 99th percentile, and guarantees high availability with multi-homing capabilities and low latencies anywhere in the world.

• https://learn.microsoft.com/en-us/azure/cosmos-db/introduction

Mongdb

• https://www.mongodb.com
• https://www.mongodb.com/developer/products/atlas/llm-accuracy-vector-search-unstructured-metadata/

Many more ...

• https://www.g2.com/categories/graph-databases?utf8=✓&order=g2_score