Wolf packs are generally a monogamous pair with their recent offspring.
And feral cats certainly form colonies, though it seems like what research there is has the primary cat social groups being a female and her young and extending from there to multiple females and their young.[2]
Really for both wolves/dogs and cats it seems like environment strongly influences social behavior and there is a large amount of variance.
[1] https://phys.org/news/2021-04-wolf-dont-alpha-males-females.... [2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7149619/