Best Recycled Streamer?

I was thinking about a reasonable streaming source for use in the system in my shop, such as an Allo Digione. I'd like it to be a Roon endpoint.  It occured to me that a used cell phone, ipad or even an old laptop would fill the bill rather nicely. So my question is has anyone read or have knowledge of which would be the optimum choice with respect to sound quality. I figure by dedicating the device as a streamer I could unload most of the software and shut down any unused services to try to eliminate unnecessary activity and noise on the device. I'd probably be hooking it up to a low to medium cost dac such as a topping or Chord Mojo. My guess is an ipad might be the best choice as long as it is new enough to run the Roon software. I use Apple devices so that is what I need advice on.