Graphic Card recommendation



Hello everyone,

I currently have the following configuration:
LG Nanocell TV 65″ 4K UHD HDR10
Processor : I5 12400F
RAM : 32 GB
Power supply : Cooler Master 550W 80 Bronze plus
ATX case
Graphic card : MSi R9 270 Gaming 2GB
Kodi 21.1

My graphic Card is slowly dying. I don’t play games with this PC (except Starcraft). It is used almost exclusively for internet browsing, home automation management and watching movies and TV shows, a little video editing.
Do you have any graphics card recommendations so that I can continue to watch my videos in 4k and BR without having to break the bank?
I saw an ASROCK ARC A380 Challenger ITX OC 6GB DDR6 or an ASROCK Radeon 6400 Challenger ITX 4GB DDR6 in a price range that suits me. If you ever have a tip or 2 to give me , I am a taker.

Many Thanks