+1 on the Aurender
I'm using an Aurender N100H with a Benchmark DAC 2 HGC and as a streamer it beats the pants off the Bluesound Node 2i it replaced. Aurender doesn't support Amazon HD but it does work with Qobuz and Tidal. Aurender also does over the air software updates and doesn't revamp models all the time so it's something you can theoretically have for a long time. They offer units with and without DACs depending on what you want but I would say even the entry level Aurender streamer will outclass your current Bifrost DAC so that's something to consider.
I'm using an Aurender N100H with a Benchmark DAC 2 HGC and as a streamer it beats the pants off the Bluesound Node 2i it replaced. Aurender doesn't support Amazon HD but it does work with Qobuz and Tidal. Aurender also does over the air software updates and doesn't revamp models all the time so it's something you can theoretically have for a long time. They offer units with and without DACs depending on what you want but I would say even the entry level Aurender streamer will outclass your current Bifrost DAC so that's something to consider.