In a small room you’ll get the best results/least room boundary interaction with a sealed/acoustic suspension speaker. They are few and far between, but well worth seeking out. I’ve had 4 or 5 pairs of sealed speakers in my small home office and got good results each time.
The pick of the litter in the manageable size options has to be the ATC SCM11s. I had the studio monitors, SCM12 Pros, which have the same drivers as the SCM11s in a slightly larger box. This is impeccable, dynamic, musical sound.
They’re ~$2K new, and there are always a few used pairs circulating (example below).