Grip Work with Stronglifts 5x5

I’ve been doing stronglifts 5x5 for about a month and a half and I was wondering if it would be a good idea to add in some grip work to help with deadlifts? and if so, what should i do?
I was thinking maybe farmers walks at the end of every workout

static holds for time as heavy as you can get with a double overhand grip do these after your deadliest