Servers from legionbox.com and planethoster.com are provided on sweet terms and I have to select the best one for hosting a forum, so what should I do?
On average, how much traffic do you expect each month? What's your hosting budget?
Try to contact GTHost.com team. They will go over your needs and find a perfect fit for you. Like their instant servers.
You can get nice budget server hosting solutions at hostnamaste.com web host.
I immediately noticed an improvement in speed when I switch to their servers. Recommended.