https://portswigger.net/web-security/oauth https://portswigger.net/web-security/jwt
I am using the free version of Burp Suite for now so sometimes it unloads/forgets which extentions you are using. I am commiting the ones I have found useful so I can reinstall them each time I start burp.
Surprisingly I was missing /api from this wordlist which is incredibly common. A slight oversight.