DT Swiss welded, alumunim alloy MTB rims are currently the best products in the marketplace. DT MTB rims have made huge progress over the past decade. Currently, they're the ones to beat.
The Easton ARC 30's are amongst the widest aluminum All Mountain / Enduro rim options in the market with a 30mm inner width. Comes with tubeless tape & valves installed.
Stan's Flow EX rims are one of the most popular All Mountain options. Comes with tubeless tape & valves installed.
Source Trail rims hit the mark, offering a strong 27mm Tubeless Ready inner profile at a paltry 490g/rim. Comes with tubeless tape & valves installed.
The WTB Frequency i25 Team rim is wide, light, and offers a TCS tubeless ready inner profile with WTB's I-Beam extrusion design.
The Sun Rhyno Lite is a known rim. It has been known for decades.