Yeah, Kobalt is pretty good. I bought a socket set that was on sale from them a few years ago and I was really impressed. I still use my Craftsman ratchet because I think it has a better grip and feel but the quality seems comparable.
My Kobalt ratchet that came in a socket set about 9 years ago (back when they were made by Snap-On) still works beautifully and I have used it often. It's my main go to 3/8 ratchet when working on our cars. I've even slipped a 5" pipe over it as a breaker bar.
Stanley is pretty alright. Lisle mentioned above is a good choice as well. The main brand I go to if I need something off Amazon is TEKTON. Hasn't let me down yet and the price is right. Though, I'm not particularly brand loyal. I have everything in my garage, price range wise. From several Snap-On specialty tools all the way down to Harbor Freight. If it works, I'm fine with it. You have to know what is good in a certain brand and what isn't. For example, at Harbor Freight I typically won't buy their basic hand tools (box end wrenches, screw drivers, etc). I do have some pry bars from there, impact sockets, a jack, jack stands, cherry picker, a couple decent sized air compressors, and engine stands. None of them have let me down in the slightest.
My toolbox at work is full of mostly Snap-On though. If you're doing professional mechanic work like I do, Snap-On is the only way to go. It'll last forever.