There are a lot of reliable hosts, most people on this forum will most likely point you to HostGator I'll bet you (not that I agree). In all reality though, what are your active requirements? Also, what is your description of reliable, it could be fast support, uptime, etc...even though you should test the support of any prospective host company you're looking into Where are the visitors of your site coming from, in other words where are you likely targeting? Another reliable point is a host that has network peering with upstream providers overseas, so that anyone visiting from anywhere should get good connectivity.
I personally recommend SolidNode.com - they have been around for awhile and currently host places like(just to name a few of the big ones): hackscape.org neosharez.com r00tsecurity.org
This is really very difficult to decide which host is reliable. If you wanna save some money then this becomes more difficult. Well I would recommend go through the forum and read the feedbacks each host is receiving. if you post like this....you wont get an independent feedback.
Any specific requirements or features you're looking for (control panels, platform - linux/windows) and any specific budget?
Please check our special DP sale link http://forums.digitalpoint.com/showthread.php?t=730204 for our best offer, uptime and refund policy Assuring you best of our services and support Thanks and regards, Toniya