Maybe something with a convolution engine? Roon, Hqplayer, minidsp depending on what format you listen to mostly. I'm in a garage and listen mostly to hires files. Using REW and rePhase I was able to smooth out some issues, bring in more low midrange and better bass. I used a full range template and went from there. The house curve I found online tamed the highs too much. I also used a frequency chart to help me identify what frequency ranges to adjust.
Good luck.
Good luck.