I'll say Heroku is still the quickest and easiest option, but it can get pricey fast and don't expect much support.
I'm currently using fly.io for my projects. A little bit more work, but a little cheaper and their docs/forums are pretty helpful. That said, once a project gets any sort of scale, I'll be moving my PG database to crunchybridge.com and let them manage the db for me.
I'll say Heroku is still the quickest and easiest option, but it can get pricey fast and don't expect much support.
I'm currently using fly.io for my projects. A little bit more work, but a little cheaper and their docs/forums are pretty helpful. That said, once a project gets any sort of scale, I'll be moving my PG database to crunchybridge.com and let them manage the db for me.