I've successfully managed to play Fortnite (don't judge :)) on an AWS g2.2xlarge (via Parsec) with an acceptable level of latency. Apart from the occasional artefacting (most notably when starting), it's been an enjoyable experience and a real insight into the potential power that cloud gaming really could hold.
What's so great about Parsec is that they allow you (at a somewhat marked-up rate so far as I can tell) to rent an AWS server directly from the client and get started.
That being said, my Parsec credit is running a little low now so I might have a go with Rainway :)
I would like to know what the difference — if any — between Parsec and Rainway is? As far as I can tell, Parsec was first, so it'd be interesting to know if their tech is superior.
[0] - https://parsecgaming.com