For me, it’s been about learning how my stutter works and endlessly practicing work arounds for tough letters and bad times. Having to say things a certain way is a curse for me so I play thesaurus a lot of the time. In a previous position, I’d have to use the walkie talkie to call someone to open the Liquor Room. Ls and Rs. Fucking hate them. It becomes the “liquor closet” or “alcohol closet” depending on if I can get through “liquor.” This is a simple example but I’ve done something similar through my entire life. I also find that singing or lip syncing during my breaks (or when working alone) can loosen me up. I obv don’t know how your stutter works but if you look up drama vocal warmups (including diction exercises), you might find some useful tips. There’s a lot of different types so there should be some safe ones