Some small inexpensive options to consider. If you have the Pi, Ian Canada designed a transport to attach also with a connected power supply. It’s seen some very positive reviews.
The WiiM Ultra has lots of fans, whether as a stand alone or using an external DAC. It doesn’t easily allow for any external LPS type solution. Many say the WiiM Pro/Plus with an external DAC sounds better especially when coupled with a very good external power option.
I’m currently using a WiiM Pro with an external 5v battery power bank solution which proved superior to an 5v LPS. Thinking of trying a 5v conditioner from Ian Canada. It was surprising how a 5v battery powered TalentCell device easily beat a 5v LPS.
Anyway, here’s one person who went with the Ian Canada additions to their Pi.
https://www.youtube.com/watch?v=8KKsLiX3tRU
Also, the Gabster YouTube channel goes in depth on a lot of streamers and these diy options. He says a streamer with external DAC can be done very well and that the DAC is the more important. I lean in his direction and appreciate his efforts.
For my "upgraded" externally powered WiiM Pro, I run two Cisco Meraki from a fiber router. It sounds great.