If you are looking for real-time feedback on which lists are currently working, these subreddits are essential:
A great free option with a modern interface. It supports M3U URLs and local files. It is slightly heavier than Tivimate but very user-friendly. m3u iptv sports playlist reddit top
for providing consistent sports streams that can be converted into M3U formats. Reliable Providers for Sports Stability TVWorldwide IPTV If you are looking for real-time feedback on
The following communities are the primary hubs for finding and discussing M3U sports playlists: Free-TV/IPTV: M3U Playlist for free TV channels - GitHub m3u iptv sports playlist reddit top