I got one of these recently: http://www.ruschguitars.com/stage__studio
It's similar to a 335 but with a few upgrades: solid carved maple (not pressed laminate) maple top, ebony fingerboard, real wood veneer (not fiberboard) on the headstock. It is also slightly thinner than a 335, though as a custom guitar you could probably get it how you wanted it.
His prices are surprisingly reasonable for handmade luthier-built instruments.
It sounds amazing, far better than any of the recent 335s I've heard from Gibson. The solid top gives it the extra something, IMO.
Also, I have one of the D'angelico EX-DC semihollows from the first run --before the Comins redesign. I don't know about the newer ones, they are basically fully hollow thinline guitars except for a block underneath the bridge, while the older ones like mine have the 335-type solid center block. It is heavy as a mofo, though, and the stock pickups were garbage. Upgrading the pickups made it sing, I get compliments on the sound every time I play it out. The action and feel are amazing on it, comparable to my Custom Shop L4 (yes, I have too many guitars . . . ), and just as good as the Vestax D'angelicos I've played. The older D'angelicos were made by Peerless, who is one of the best Korean makers for hollowbodies. Again, I don't know about the newer ones. I understand that D'angelico quality control wasn't great, so there may be some dogs out there and I just got lucky.
Some of the older Ibanez semi-hollows can still be found for decent prices, and they can be amazing guitars.
There is also a company called Seventy-Seven that is making some sweet-looking 335 copies out of Japan but I have yet to try one.
FWIW Jack "Sheets of Sound" Zucker has done comparative reviews of a lot of semi-hollows.