Aiyima A07: https://www.amazon.com/AIYIMA-A07-TPA3255-Amplifier-Digital/dp/B08CJZGT6H/
It measures really well for its price range according to ASR: https://www.audiosciencereview.com/forum/index.php?threads/aiyima-a07-tpa3255-review-amplifier.18984/
Or if you want to spend a bit more on something with a 12V trigger input:
https://www.amazon.com/OSD-Audio-XMP100-Amplifier-Automatic/dp/B01N3QXFDG