If you're looking for a heavy Marshall type sound in a SS package, Hughes & Kettner Warp 7 amps are very underrated.  Tons of gain but also plenty of headroom for clean sounds.

I myself own the following SS amps:

Peavey Bandit 65
Peavey Transtube Blazer 158
Behringer GX 110
Epiphone EP-800R
Yamaha G30-112
Crate BX-80

and  one hybrid: Music Man HD210