My Oppo 105 finally bricked. Streamer suggestions?

Sorry to hear that, although I never used my 105 for streaming, I was relieved to read that it still functions as a player. I have been concerned about losing this unit if it ever fails. I use mine primarily as a BluRay, Cd Transport and for SACD 2 and 5.1 surround. 
That said, I use the Bluesound Node for streaming and it does a good enough job on its own and even better with an external DAC. If you prefer the sound of the DAC of the Oppo, you can take the digital out on the Bluesound in the digital in on the Oppo and you’ll be back in business.

It does seem odd that streaming is the only function that has failed. Have you checked the Ethernet connection, re assigned your Wi-Fi if so used? And I am sure you have tried unplugging the unit, press each face plate button while unplugged for a capacitance reboot, to see if self corrects?

Good Luck

Theo

The usual suspects in this this price range are Bluesound, the various iFi products,

Project..  Don’t forget that the app is an important part of the experience, with Bluesound scoring big here.

  For slightly over your budget there is the excellent Cambridge Audio CXN 60, which also adds superb AirPlay and Chromecast implementation, both of which sound great being streamed from the phone.  I get the impression that the OP is auditioning DACs, and he might also find the CA DAC meets his needs since the player has many digital inputs

Check over on TMRaudio , they got several streamers recommended here in your price range. ( Cambridge & Bluesound) Alternatively look for a Bryston BDP pi.  Spartan interface, out of production,  hard to find but built on the Raspberry Pi platform and sound excellent.