What is your favorite budget streamer?

I have a WiiM Pro  - Schiit Bifrost (fully upgraded) - NAD D3020 VII - Tekton Lore for my bedroom set up. The Bifrost was a real upgrade for the system.

The WiiM streamer works flawlessly streaming Tidal through Tidal Connect.

I have 1 Bluesound vault purchased in July, 2018 and 4 Bluesound streamers purchased shortly after, and all have worked flawlessly. 

In your $350 price range, I'd order both, the Bluesound Node 130 which as @coronado2 said, is on "special" now for $349 since it will soon be discontinued for the three new models of "Nodes" they have come out with, AND the Wiim Ultra. Test them out within the return period at Amazon and see which one (if either) is demonstrably better sounding to you in your setup. 

I happily have the a BS Node N130 on a system.

I know this will get lost in the rah rah noise, but look at a Hollis Audio Labs MS6 streamer with a GAN power supply. Little nuc based running W10, streamlined for maximum audio performance. Better than a famed custom MacBook laptop and even beats any Node variety I've heard by quite a ways. You can run via traditional monitor screen and mouse or headless using your phone to control Foobar or via Chrome Remote Desktop. Lots of tweaks to the operating system to maximize performance on audio only. Don't expect to play games on this guy.

HAL MS6 Server thread on Audiocircle

In my opinion, worth looking at for sure.