Ryobi and Milwaukee are owned by the same company, have been for 20 years. I have some Milwaukee stuff and they‘ve been good, not used Ryobi.
Bosch have always done two “grades” of power tools: green for the home DIY job market and blue for the tradesman market. IME, the green are generally poor and the blue are decent.
Black and Decker and Dewalt are the same company, just different brands. Dewalt was always the trades market and seem to be good.
Makita have a cheap(er) line which are red, called Maktec. Cheap for a reason. The usual blue range are generally pretty good.
AEG had a big marketing push here and sit in the premium price bracket with Milwaukee and Makita. My experience is they are also pretty decent, with the caveat that the one I use most (drill/driver) has a chuck that is not especially durable or accurate.
Our major chain store for this stuff has some generic label range that is surprisingly decent if you get lucky. I’ve got a rotary hammer drill that cost peanuts because I wanted it for one job only. Nearly 15 years later it still works fine, can’t kill it. Butfor “precision” tools, not so great.
If I was starting over and to pick one brand now I’d probably go with Makita, back up option would be Milwaukee.
With regards hand tools, Fuller are ok, Wera and Facom are good. The difficulty now is that manufacturing quality has significantly declined for many of the “good” brands and what used to be great are now…. Not. I’m looking at you Sidchrome, Craftsman etc.