I haven't been in that market recently but some brands you might want to consider are Oppo (apparently no longer making products but new old stock might still be found), NAD and Outlaw Audio. Those manufacturers make a wide range of products in the not too expensive but reasonable quality range.
Stereophile magazine's 2020 Products of the Year speaks highly of the Outlaw RR2160 Receiver. But it probably only has a 2 channel stereo amp (with a sub out).
We have a Yamaha 5.1 channel integrated amplifier (it was a gift) that we use for our television sound. We only use 2 of those channels to power KEF 101 speakers. That combination works surprisingly well for television. For our main stereo we have a Benchmark DAC/preamp, a Mark Levinson power amp, and Mirage M1 speakers.
Back in the early 1980s we had an NAD 3020 integrated amplifier that's still highly regarded. I can't imagine KEF making a bad product.