Realistically, a shotgun can't quite be chosen by quality or brand. You have to determine what fits you. I have had one of the best shotguns that fit me be under $2000, and I have shouldering $9000 kreigoffs that do not seem to fit just right.
You will hit more with what shoulders better, regardless of the brand.
To answer your question though, there are a few out there. The Mossberg Silver Reserve is a good option. Not only is it economically satisfying, it is aesthetically pleasing.
The next one I would suggest would be the Savage Milano. Very nice guns. Research it a bit, hopefully they are still running under $1000.
The Baikal IZH-28 is a good over under for the money, solid work horse. Those russians do not put all their money into the cosmetics of the gun, but they are very solidly built. Should be under 600 too.
LISTEN. You will encounter is the Stoeger Condor (and variations) in your research. Being honest, stay away from these. I have never seen so many problems with a gun, ever.
Lastly, definitely try and find a good used browning/beretta/marrochi/zoli or a large brand used, even in the EE.
Good luck.