Fry's has the Denon x1400H and Yamaha RX-A770 on sale this week for $378 and $379 respectively with Sunday promo code. Both are 7.2 receivers which can do Dolby Atmos 5.1.2 and DTS:X.
Link for Denon x1400H for $378 with code
link for Yamaha A770 for $379 with code
To sign up for Fry's promo codes use the link below. You'll get your own code within a few minutes of signing up.
The Denon has 6 HDMI 2.0 inputs with HDCP 2.2 and can pass Dolby Vision as well as HDR10.
The Yamaha has 6 HDMI of which 3 are HDCP 2.2 but doesn't have the Dolby Vision update yet but can do HDR10. The Yamaha has Bluetooth transmit and receive so you can transmit to Bluetooth headphones.
The Yamaha is built better IMHO and has the better smartphone app. Both AVRs come with 3 year manufacturers warranty. If you need Dolby Vision pass thru now then get the Denon. Not all 4K TV's are Dolby Vision capable. Check your TV.
At the time of this posting both are available for free shipping but eventually they will be In Store Only. Get them while you can if you don't live near Fry's.. See attachment