Welcome to the last human holdout on the world wide web.
I believe Boost Has Ads right? Im using Summit by @idunnololz@lemmy.world and its phenomenal. It has no ads and is highly customisable or at least the parts you would want to customise are. Its UI is up to date and feels right at home with the rest of Android Apps. Maybe you can give it a try, or not if Boost works for you. :)

There is https://soundiiz.com/ which works really well even with their free tier. I think I have transferred all my playlists from Spotify > Apple Music > Qobuz > Youtube Music` by now :) Unfortunately it does not help with convincing family members :(