We offer a wide variety of options for VDS server and high performance options for dedicated servers. You can find these options here;https://www.nfoservers.com/order-virtua ... server.phphttps://www.nfoservers.com/order-dedicated-server.php
In your case I would recommend a 2 or 3 core VDS server depending on how many servers you want to run. We give you the option to choose managed or unmanaged, personally I believe managed is the best and should do you well. However if you would like your server to be a beta server you would need to contact us so we can do that.
We talk a lot about managed and unmanaged, how they perform and what you can and cannot do with them here;viewforum.php?f=35
To be more specific;viewtopic.php?f=51&t=4559viewtopic.php?f=51&t=4561viewtopic.php?f=47&t=3810
We even guarantee the performance, with our performance guarantee! (Game server,voice server and managed VDS only)viewtopic.php?f=25&t=3952
If you have any further questions please go ahead and post here or open a support request on our site by going to "Support" and 'Contact Us".