I've used serverhunter.com but be wary of the fakes as there are unknown "companies" who place their offers of powerful servers for cheap prices only to take your money and never deliver. It needs more reviews but so far the few of them are already useful and the site also provides several filtering options that can make browsing more specific and in many cases - easier.

And no - I'm not related to this site or it's owner/s in any way, I stumbled upon it on a reddit post 1 year ago and found it useful.