First of all - be careful to not wreck your elbows.
That said, there are a handful of things to try: add weight - fairly straightforward.
Train different grip positions/width etc. Palms facing/facing away, narrow grip and wide grip.
Do offsets (one hand higher than the other). One of the easiest ways to do it is by hanging a towel over the bar and using that as the lower grip. Good work on your grip too. You can also swap the towel for a resistance band, but it’s a lot harder than with a towel as it’s basically a one arm chin-up minus whatever assistance the band can provide (which often isn’t much).
Do negatives - jumping to the top position and doing a controlled lowering, do these when you can no longer complete a rep normally. You can also do them with 1 arm for a particularly savage workout, NB doing one arm negatives is fairly traumatic so do it as the main part of the workout rather than at the end.
Superset bicep curls before doing chins so that your back is having to do more of the work.
First of all - be careful to not wreck your elbows.
That said, there are a handful of things to try: add weight - fairly straightforward.
Train different grip positions/width etc. Palms facing/facing away, narrow grip and wide grip.
Do offsets (one hand higher than the other). One of the easiest ways to do it is by hanging a towel over the bar and using that as the lower grip. Good work on your grip too. You can also swap the towel for a resistance band, but it’s a lot harder than with a towel as it’s basically a one arm chin-up minus whatever assistance the band can provide (which often isn’t much).
Do negatives - jumping to the top position and doing a controlled lowering, do these when you can no longer complete a rep normally. You can also do them with 1 arm for a particularly savage workout, NB doing one arm negatives is fairly traumatic so do it as the main part of the workout rather than at the end.
Superset bicep curls before doing chins so that your back is having to do more of the work.