I use listenbrainz to scrobble (track played music). I like it because it is open source, and they publish using open data. This means that everyone has an equal right to the data, and can use and extend it however they want, which is a feature I wish more services.
There is also Ryot I am keeping my eyes on, as it promises to be an encompassing tracker, including tracking music, but its currently in development.
What's wrong with last.fm? I've used them since 2007 and imo they're way better than something like Spotify. Lastfm is free.
You have to pay for certain statistics (e.g. the monthly listening report) and I don't like giving all my listening data away and then still having to pay to see stats about them
Idk, I haven't paid a dime in over 12 years and never saw an ad (with blocking). Never received spam or had features removed or shitified. Lastfm is one of the few places to have done it right imo. Don't get me wrong, self hosting is great, but self host the music before you care about the stats