Please, tell us more requirements.
Personally I know Wolfcraftserver.com is really good option to get servers at. Here is the one I like:
Essential
$ 84.99 per month
AMD Opteron 3365 (8 X 2.4Ghz)
32 GB DDR3 RAM
2 X 2 TB HDD or SSD's
100 Megabit Fiber Connection
Unlimited data transfer
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