In that price range I would recommend you consider Tom Maker's amps. Well built, very good sounding, ss amps, built in the USA so servicing is easy. You can get a stereo amp that puts out 225 watts per channel for about half your budget; if you want to spend the whole budget, there are mono blocks available. Here's one listing, but search on Maker for more.
https://www.audiogon.com/listings/solid-state-maker-audio-g9-maker-formerly-edge-electronics-2017-02...
https://www.audiogon.com/listings/solid-state-maker-audio-g9-maker-formerly-edge-electronics-2017-02...