Decide what kind of lid you want first. Tempered glass is great since you can see what's going on. If you want to be able to throw it in the oven then you're probably looking for a metal handle, as nylon will top out at 400F/200C. There's also the question if you want a vent hole in it. I just put the lid on crooked if I want to vent because sometimes I want it fully enclosed as a mini-oven.
As for brands, I'd try to match the brand of your pan if possible, as they will generally mate and make a better seal. I like Cuisinart and Calphalon since they have metal handles, and make a nice seal at the rim with all my pans (of varying manufacturer).