I am currently developing a website called PROJECT:Charlie, that teaches users to code (like scratch or google santa tracker code lab). There will be levels and a level creator. Each level's information (title, description, hints, etc) will be displayed in the website. The level itself will be a unity webGL embed in the level page. What online databases support both unity webGL builds and Next.js web apps?

I tried Firebase, but the unity database is supported for only ios and android builds.