Tiger, Bud1 is giving good advice, many I talked to recommended a Beretta. Another popular brand is Browning.
Less well known but good guns are Weatherby, SKB, Miroku, Charles Daly. I am sure there are others.
Where I shoot almost all the O/Us are Brownings. Ruger O/Us seem to be hit or miss. Either it lasts forever or you have to send it back. The service seems to be real good with many satisfied customers.
The Franchi O/Us are beautiful. There is a beauty in the local shop. It feels right, too. It looks like a more expensive gun. But if it needs service, look out. The service is terrible.
Probably it is better to steer you away from the bad guns rather than try to lead you to water. There is a lot of good guns to choose from. Take your time ask a lot of questions and try to handle as many different O/Us as you can before making a purchase. Take you 870 trap and skeet shooting and make some friends.
Here is a list of guns that I personally would avoid.
Traditions, European American Arms, Stoeger, Baikal, Sig Arms A-3, anything budget or value-priced.