[nickjj]

It depends.

I personally use DigitalOcean but now that Hetzner is starting to get US data centers that is looking like a good option too.

With no other context, if I were creating a startup today I'd likely go with DigitalOcean.

AWS is also another option, especially if you think you'll be using some of their services.

But for a typical web app + SQL database + cache + object storage set up DO works nicely, although I would still use S3 for object storage even though DO has it, I find S3 to be more dependable.