Turns out, most of the forks I had were easily deletable. I used them for PRs, but the PRs have long been merged, and there was nothing useful left in the forks.
So I'm down to 6 total repositories, and by the end of the week, likely only one will remain.
Three needs to move to their new home (should've been done years ago), one has a PR I need to act on, and the last one has a lot of branches I need to review if its worth keeping.