8000-10,000 is a good rating for a winch.
Brand will depend on your presences, how much you want spend and how often you use it.
It is really hard to go wrong with a Warn or other top band name but there is a cost to that.
I have always had Warn on my ATV's. On my newest machine I went with a 5000lb Harbor Fright Badlands winch. For $170 it was hard to pass up. I know several people with these winches and they have been happy. I have used mine a ton over the last 2 years and have been happy.
Keep in mind that it takes a fairly good power source to run a large winch. Cabling is not cheap and will likely cost more than the winch. This is one of the reasons I have not put one on my trailer yet....
2014 Volvo 630 Tandem 2016 Chevy 3500 DRW, crew cab
2016 Fuzion 325T, 675ah AGM, MSH 3012 inverter, 1400w Solar