Embedding Model for vectorizing json files

I’m quite new in LLMs and would like to create a database from json files.
All posts I have found so far are using OpenAI models.
Are there any free LLM text embedding models suitable to vectorize json files?
Does anyone have experience with that?
Please let me know.

This post describes what I am searching for.
Using Vector Databases(Pinecone) with data(JSON,tabular). - DEV Community