So stating from the outset that I haven't kept up with new amps and features and vendors, there's a reason.
I've been using Acoustic Image amps for maybe 12-15 years. They never fail. They have great two channel features. The company provides the best customer service you could ask for. Small, light, super reliable, hi-fi frequency range; they've been doing two ohm since their early years and I've used two 4 ohm cabs (Euphonic Audio Wizzy's) in parallel on many gigs. I've played upright, fretless, 6 string acoustic, 6 string electric, vocals and guitar at same time, bass and drums at same time, and even just a two channel hi-fi PA for a small gig where space and volume were limited.
It's possible AI was in the forefront of the lightweight powerful amp momentum; not sure. And I haven't keep up with amp vendors since my two 2-channel amps (a Focus and a Clarus) have provided all the flexibility, power, features and reliability I need. One validation of their value to players is that their resale value is very high. And no I'm not affiliated with them or any vendor in any way.
Good luck.