http://r53zi7kxyqd72fuvhztzi25fo2bze7fqjefze7k6t6kiq74pzaq5suyd.onion/posts/2023/2023-09-09.html
I decided to look for the other missing ones as well, and I got archives for all the threads except for one. About a week later, Yukinu , the original creator of the first webring thread posted links with the archives first three threads, where the last one was a pleasant surprise to see being archived, as it wasn't available on the Wayback Machine.