Edit note: I went back and added an emoji because part of this is a little tongue-in-cheek.
I'm all for playing Auburn, Alabama, uga, and Tennessee every year. Or, rotating them so we play these old rivals again. However, that'll never happen, and probably for good reason.
However, although there are only a handful of stellar teams in the SEC each year, they tend to dominate the rankings because of a perception, not a reality. It's a vicious cycle. SEC teams are notorious for playing no one outside the SEC. When they do play other P5 conference teams, they tend to choose weaker teams in those conferences. You will find instances where they do play someone, but most of the time they don't.