Don’t want to sound like a broken record (pun almost intended relative to this general forum!) but why not consider the surprisingly good RPi based Allo Digione (or Digione Signature)? It can stream most everything mentioned here, can be easily equipped with a LPS, and had been (considered) to outperform the bluesound nodes in at least a couple of reviews. Well, I think Darko still makes that assertion, at least. With every new DAC upgrade I’ve made, it just keeps surprising me. It would take a big budget jump from this particular RPi platform before overtaking it.
Otherwise, SOtM then Lumin stuff seem to be really great for the $$$.
Otherwise, SOtM then Lumin stuff seem to be really great for the $$$.