You can add Hetzner (all Managed Server). We run about 30 neos websites without any problems there.
Also add Flownative Beach, which is a Platform as a Service specifically designed for Neos and Flow.
It runs on Google Cloud Platform in the E.U., has support for Redis, Elasticsearch, automatic SSL certificates, manual or auto-scaling and more. And since it’s run by @christianm, @kdambekalns and me, it always has proper support for the latest Neos and Flow versions. And some friendly support, too
We have small projects running on DomainFactory, so it works. A plan with SSH support needs to be taken.