speaker recommendation for low watt tube amp

Audio Note

Are you looking for floorstanding speakers or monitors?

In the former case: Zu Druid Mk4 used. Barely used Druids can be found for USD 2 - 2.5k.

I'm using mine with a Unison S2K of the same wattage. Check whether you can position this speaker freely, though, it seems particularly sensitive to that.

Good luck.

Reference 3A mm deCapo's. Cain&Cain Abby's, you see a lot of them on Agon in virtual systems so you could email those people and ask their opinion.

Coincidnce
Silverline
almost any horn
Klipsch

Cheers,
Spencer

I think you'll find 14WPC will drive more speakers than expected if you don't mind a bit of digging.

Look for speakers with a benign load (=/>8 ohms) and a relatively flat impedance curve. There are plenty of possibilities at your price point.