Best cheap GPU to use?

[TheDreadPirate]

Just got done getting Jellyfin setup, and thinking I should add a GPU for the HW acceleration. 

Currently running Rocky 8 Linux with Jellyfin though a docker container. 

What would be a good(cheap hopefully) option for adding some hardware acceleration? 

So far I love this software, its everything I wanted from Plex without all the bloat I did not want. 

Current integrated GPU/CPU info

Code:

AMD A10-7860K Radeon R7, 12 Compute Cores 4C+8G

$ lshw -C display
WARNING: you should run this program as super-user.
  *-display
      description: VGA compatible controller
      product: Kaveri [Radeon R7 Graphics]
      vendor: Advanced Micro Devices, Inc. [AMD/ATI]
      physical id: 1
      bus info: pci@0000:00:01.0
      logical name: /dev/fb0
      version: d6
      width: 64 bits
      clock: 33MHz
      capabilities: vga_controller bus_master cap_list rom fb
      configuration: depth=32 driver=radeon latency=0 resolution=1680,1050
      resources: irq:51 memory:c0000000-cfffffff memory:d0000000-d07fffff ioport:f000(size=256) memory:feb00000-feb3ffff memory:c0000-dffff
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.

Or maybe there is just something I need to do to expose the GPU to docker and my current setup should be enough? Want it to be able to handle at least two 1080p streams, but will likely want to upgrade so it can handle around 4-5 in the future. 

Thanks!

Its also possible that integrated GPU doesn't support the video codec.  AMD hardware acceleration drivers and configuration is weird, pre-Vega.