Looking to Buy a USED AVR

Bought a Yamaha TSR-700 /RX V6A for $375

But I read about all the problems this receiver is having.

Does anybody have a better AVR than this one.

Preferably with:
HDMI 2.1 support
(Dolby Atmos Height Virtualization and DTS:X Virtulization)
Preouts


Shipping is to a overseas US military base:


Mailing Address:
USCG Sector Guam
PSC 455 Box 176
FPO AP 96540-1056

FPO = City
AP = State

I would like to buy a Denon or Yamaha Receiver.

2019-2021 MOdel

Something less than $1000

Between $300-$800