Check out this custom Pepe Romero Tiny Tenor “guilele”:
https://vimeo.com/276077094?ref=em-share
I think the sound is spectacular.
Romero Creations, Pepe’s production line, offers an affordable guilele.
Both Jay Lichty and John S. Kinnard build “Kiku’s” which can be built on tenor (17-19 scale) or baritone (19-20 scale).