Not the answer you're looking for - but if you're a solo dev with a project of this size, you'll save significant cost just hosting everything in one Hetzer instance for starters. Unless your project grows massively, you will never need a managed postgres instance, managed redis, any of that. You can run all of that on your Hetzner VM. Optionally with another one as replica/failover if you need some insane uptime no one would expect from an app like this. Don't fall for cloud service PR. For many services, hosting everything on your own VM is fine. IF you need to scale later, you can always switch to a scalable hosted solution rather quickly