(Copied from Reddit)
OldToons.world is open for signup, i don’t know the period but now is open.
Type: Ratio-based
Signup Link: https://oldtoons.world/register
Closing Date: Unknown
Stats:
Users – 21.000
Torrents – 22000
Peers – 140.000
Seeds – 139.000
Leechers – 1000
It’s a UNIT3D tracker so you need to add the API key in prowlarr. The tracker is relatively recent, so you may need to update prowlarr first.