The new Bluesound Nano is a great streamer that is affordable.
I sold a pair of speakers a while back. Usually I will meet in a neutral safe area but he seemed like a decent guy so I brought them to his house.
He had a WiiM Ultra and after listening for a half hour or so I thought it sounded pretty good. That was through it's RCA out.
Depending on your budget the Bluesound Icon definitely seems like it's worth a look. When my Vault 2i dies that's what will replace it.