http://remtek.com/arms/
Your best bet is to join a club and talk to the range master. The other shooters will be more than happy to let you fire their toys. Keep in mind, most of us have strong preferences as to why they like their gun best. And that's terrific.
Thanks. I like all kinds of guns but the ones I really have an affinity for are the Western ones, especailly the good old USA. Despite performance problems, as the workhorse of the US military, I always admired the Armalite class of rifles. HEckler and Koch is another favorite especailly the MPs. Not to knock Russian and Israeli engineering, their AKs and Galils also does the trick well, respectively.