I faced this question a while back and chose the Innuos Zen Mk3. I've been very happy with the choice. The sound is clear and natural, and the Innuos Sense software is easy to use and optimizes sound quality. As carzmaguy88 pointed out, the Zen costs only a little more than the Mini after adding the external power supply.
Zen mini mark III with lps or zen mark III
Looking to upgrade from bluesound vault 2 to something better. Trying out a Node 2021 at the moment but the difference is not huge. The Node goes USB into an Aesthetix Romulus and the Vault goes in over coax. Interestingly, while the Node is the source I can play file from the Vault hard drive. Would like to know if spending a multiple of the cost of the Node to get into a zen is going to be really noticeable. Thanks