I went through this process about 20 years ago, after knackering my back lifting very heavy cabs for many years, and now that's being compounded by age!!
I need 4 things from a cab, clarity, great tone, light weight and portability. After trying a few different makes I settled on Barefaced. They were the only quality lightweight cab manufacturer at the time, and while they have some competitors these days I wouldn't change. BF's still tick all my boxes.
I owned BF 10's and the 12's and finally settled on 2 112 Super Compacts. They are the cloth grill models, to shave a few lbs off the total. They weigh 22lbs (10kg) each and are loud enough that I haven't been overpowered by a guitarist in years. They fill the room, and the stage, with their great dispersion. I wouldn't get a 212 because it is too heavy. IMO 2 112's is the best, most flexible and portable rig for a damaged back.
They are not cheap, but my back doesn't care about budgets, so I buy what I need.
I use Aguilar amps.