Initial creator of autojump here: just use zoxide. I passed autojump mainternship to someone else a few years ago but it has now been abandoned. Rust is superior to python for this application anyway.
Switched as well, with "alias j='z'" seems to be 1:1 replacement so far. Also did 'zoxide import --from=autojump ".local/share/autojump/autojump.txt" --merge'.