It would be important to think about and evaluate speakers by their intrinsic sound quality. This is why speakers are typically the starting point... then you evaluate the electronics you need to support them. Even if you do can’t change electronics for years... I’d recommend evaluating speakers by sound.
I prefer musical / natural sounding speakers... so I would recommend Sonus Faber. For a more detailed oriented, but still musical I would look at DynAudio.
If you are able to move the speakers forward a bit and put them on solid stands, and cover the TV with a very heavy absorbent material they will sound much better. I can understand your dilemma.