Graphics Card Advice Sought

[jprobins007 24]

I am running Emby Server on a TVS-h674, having recently upgraded. I have the i5 flavor of h674.  I am planning on installing a graphics card for hardware acceleration, primarily for 4K movies.  And, I am a bit overwhelmed with the options.  I would very much appreciate any suggestions, opinions, or experience as to which card to choose. Who is running a card they are happy with? While I would rather not spend the Earth, I am am happy to invest in something I can count on for 4 or 5 years to come.

[Q-Droid 989]

None. That's a 12th gen i5 so you don't need to add anything for HW transcoding.