Tech 21 Trademark 60 fits your description perfectly. Great build quality, made in USA (if that's important to you - or, actually, even if it isn't...) and the company has a very good reputation for customer service should it ever be needed. The TM60 comes in 1 x 12, 2 x 12 and 4 x 10 versions - mine's the 1 x 12 and it's one of my two favourite amps of the very many I possess.
That said, the Fender Frontman 212R offers terrific bang for your buck and, though I'm not their greatest fan, the Peavey Bandits and Specials are plentiful, capable and inexpensive.
Despite claims to the contrary, I counsel you not on any account to consider the ZT Lunchbox in this specific context. With or without an extension cabinet, my experience is that its clean headroom is so severely restricted as to render it comprehensively blown away by a modest Roland Cube 20X. Neat novelty but overall frankly an almost complete waste of my money.