Denon and Marantz will add HDMI 2.1 to these older receivers for $600 | Engadget
Best A/V Receivers with HDMI 2.1 and 8K Support - GameRevolution
Yamaha launches first AV receivers with multiple HDMI 2.1 inputs - FlatpanelsHD
JBL Synthesis Announces HDMI 2.1 Upgradability for Current Models: SDR-35 AVR and SDP-55 AV Preamplifier - HomeTheaterHifi.com
Denon AVR-X6700H Full 8K AVR with 1x 8K HDMI 2.1 Input. 11.2 channel AV Receive 883795005050 | eBay
Best AV Receiver 2022 - IGN
Sound United Announces HDMI 2.1 8K Upgrades and AVR-X8500H"A" and Marantz AV8805"A" AV Receivers | Audioholics
Arcam HDMI 2.1 High Power Class AB AV Receiver in Black | Nebraska Furniture Mart
Yamaha AVR HDMI 2.1 Xbox Series X issue solution revealed | StereoNET United Kingdom
Denon AVR-X2700H 7.2 Ch. HDMI 2.1 receiver - Value Electronics
Amazon.com: CABLEDECONN HDMI 2.1 Ultra 8K HD Bi-Directional Switch 8K@60Hz 4K@120Hz 1in 2out 2in 1out High Speed 48Gbps Splitter(Singal Display) Converter with One 8K HDMI Cable Compatible with Xbox X PS5 :