Yeah, I used a modified Spotify client without ads, uninterrupted skipping, etc. to set random songs as my alarm. I download what I like through various sources, music wise, however to find new artists I use YouTube Music so have a client for that too (I have random tastes, and over the years got into artists who never really made it big at all: YT is good for the very obscure stuff most folks would call "people screaming into the mic" which, I mean, I guess it is but it could be music too..)
I forget the one exactly, however it's usually posted on the Mobilism forums by the dev. That site has a good amount of apps with ads and such stripped.