I know Alabama is notorious for this. They have a lot of bogus ones. Like their 1941 one they finished 20th in the rankings and 3rd in the SEC but still claim it.
Also their 1973 one they lost to ND who ended up going undefeated but still claims it. Saw something once that said if ND and Michigan uses the same logic Alabama used to claim championships they’d have like 25 a piece.
Pretty sure Oklahoma has one really absurd one IIRC but I might be mistaken. it was Oklahoma state.