In general, more power, more better for most all speakers. So let’s say you have a choice for the same amp… like Pass 150, 250, and 350. Higher power sounds better at low volume and high volume.
However, choices are never that simple. Undoubtedly the choice will be among different amps and technologies.
For me, once I left solid state amps, I did not want to go back and I would settle for a lower power tube amp (of high quality) over a solid state.
Ultimately, you have to listen to the character of the amp… then I would go as high on the power as you can. Without going overboard. If my speakers were 105db efficient, I would not pair with 350 watt amps… instead I would go much higher in quality and go 100 wpc or something like that.