>>47017454Yeah your team becomes overleveled quite easily, and you can farm a lot of exp candy with raids.
I'd recommend you to rotate your team constantly. I rotated my whole party after each gym and surprisingly it was pretty challenging. Then near to the end I made a team of the pokemon I liked the most through the whole run and fed them up with candy to patch the level gap. It was pretty fun, but that fucking game has zero replayability kek, so make the most of it on your first (and potentially only) run.