What database to use to deploy a telegram bot?

Question

Python

I know that sqlite3 is not suitable because heroku erases all records on restart. Since the bot is for educational purposes, I don’t want to pay for a full-fledged server. If there are other hosts, please tell me.
PS don't hit hard, this is my first telegram bot with a database

Answer 1

If you do not plan to store too much data and the number of requests will not be large, then you can try Google Firebase , there is a free plan.
Unless, of course, the presence of SQL is not critical for you.

Answer 2

heroku has native Postgres, there is a limited free version. https://www.heroku.com/postgres