The AudioNote AN series speakers are designed to be placed into the corner so you make better use of the whole smaller room size you already have.
the ANE's ( largest but most expensive) go low too like mid 20hz .
Your going to look for used as new I believe are a little out of your budget ( maybe the ANE LX) but worth looking for if you can find a set.
They are also easy to drive so no need for big horsepower amps. I drove mine with 8wpc probably could use 25wpc though to be honest.
I think you'll find a million reviews online
https://www.audionote.co.uk/loudspeakers
oh you can get all their models in kit form as well if your handy you can save money that way.