I'm looking to build an open source API and I'm trying to find places that offer free hosting for databases. I've got a few options like Heroku, Contentful, Tumblr etc -- but I was wondering if you had any suggestions!

Ideally I just want to store simple data: like a post title, description, tags -- and grab it from a GatsbyJS or NextJS app. It'll be a few hundred, if not a couple thousands of entries, so I can't use something like a simple JSON file or something.