Mitsui, Parker Majestic, Okamoto, Brown & Sharpe Micromaster, Harig, Chevalier, Reid, for home shop size machines, probably missed some. Then, too, some people like Mercedes better than Caddy's. In the used market, any brand can be junk, and any brand can be quite usable, depending on condition, condition, and condition. Some have the handles on the opposite sides, and things like that are personal preference. Since you have a surface grinder already, you can take your time and be a whole lot more picky.