I'd recommend the Arylic A50. I can't fault it, such a good bit of kit!
https://www.amazon.co.uk/Bluetooth-Amplifier-Arylic-A50-Streaming/dp/B07KX3MHLV/ref=sr_1_3?crid=3B01DOI5GA6EC&dchild=1&keywords=arylic+a50&qid=1610464533&sprefix=arylic+a50%2Caps%2C146&sr=8-3