That is ACC, still alive and kicking. Here is a gui front end for it, you can get it from fdroid or GitHub https://github.com/MatteCarra/AccA
The some of the old music sites are still there. But I would avoid torrentgalaxy.to it has curated weekly albums of top playlists from Spotify, tiktok, etc that have all the new stuff updated every week, for your local playback displeasure. Only uncool people play locally stored music, all the cool kids stream. Do not go there.
Another vote for Antennapod.
Now that it has **rudimentary Ad-Skipping **
You can set et to skip X seconds in the beginning and Y seconds at the end of each podcast individually.
Maybe one day we will get Sponsor block integration for crowd sourced ad skipping , or AI using the crowd sourced skip points as a guide to fine-tune skipping on device , ( everyone tends to get different length advertisements , depending on targetting or region )