Suggestions for replacement for my old Nuforce AVP-18 surround sound processor

Not really up on the surround sound processor market at all as I concentrate on my two channel rig.
But this is the HT system in the family room which the wife uses 96% of the time.
I bought the Nuforce AVP-18 and matching 8 channel 150w class d amp brand new a few years back and they have performed flawlessly and still do.
Running 7.1 setup and do not intend to change the speakers or power amp.
The only reason looking at upgrading the processor is that there are some newer formats it does not decode like Atmos etc. Email reply from Nuforce reveals they have no intention of ever upgrading the avp18 software any further so no further advancement can be made to it.

So whats out there?

Watch a mix of dvd/bluray from an Oppo 105d and the rest is streaming via netflix or Roku.
Tv is a 4k HD model.
Presently the Oppo is fed into the avp via HDMI and goes out to TV for picture/sound via HDMI.
All I should need are the regular RCA Analog outputs for the 7.1 to go to the power amp and two toslink inputs for a couple other devices as well as the usual HDMI IN/OUTS.

Processor only , not looking for a full on receiver.
Budget $1500 to $2000
Thank you and stay safe