The week it closed
"aniwave alternatives", "sites like aniwave", "aniwave replacement", "what replaced aniwave", "r/aniwave" and "aniwave alternatives reddit" filled the week of August 2024 and have not stopped since. "aniwatch vs aniwave" is the comparison people made, because the two were the largest of their kind and people used both.
Four things to compare
How complete the catalogue is, and whether the Chinese donghua are taken seriously; whether sub and dub are both reachable; whether every episode is dated so a place can be kept; and whether it works on a phone. On all four this is the AniWave people remember: the Chinese shelf, the audio menu on every service, the season tables and a phone-first layout.
The threads are worth reading for the mood, and the answer is the same every time: this address for finding and tracking, and for an anime you will rewatch, the services on the Watch now list.