I used them in parallel for a while before switching to AdGuard. The key features that mattered to me were support for upstream DNS servers via DoH, detailed query logs, and wildcard domain rewriting. Also a better looking UI is a plus.
Good news! Hope they implement detailed query log and support for upstream DoH DNS next.
You can check out music streaming servers such as Navidrome (Jellyfin also works) for that together with a compatible client such as symphonium This is a closed source app but the most feature complete. I use Tempo but has no android auto support I believe.