This is one of the videos ranking the best exercises for grappling strength that I have found useful.
I very much enjoy Alex Sterner’s Instagram. He gives out valuable tips on exercising and recovery. Emphasising sleep and nutrition. And constantly mocking cold plunges, weird diets, weird exercises, functional training etc. Hilarious content.
This video by B Team also helps to explain some simple exercises and the rationale behind each of them this way.