Hi @Nemzytch great question! Strapi has quite a few tutorials on how to deploy a Strapi project online. Here you can find them.
For me, I make sure to store my database and other sensitive information in a .env file, that way I can also commit the files to github. Then, all of the major hosting providers like Microsoft Azure, Digital Ocean and Heroku have automated software that can help build your app using a git repository.
Heroku is really nice, and easy to set up, but the servers shut down after a little bit of inactivity, so you may not want to go that route if you need the api to be running constantly.