For a little bit more you can rent on https://openbsd.amsterdam - they also donate to the OpenBSD foundation!
It is a small and no frills service but the sys-admin, who runs the project, is very helpful and attentive. That is to say probably much better and human customer service than the big players. There are definite downsides, but if a project fits, highly recommended.
The fact that they donate back to OpenBSD is great though. I own a VM there for testing stuff.