A couple of takes on Hut8 & btc miners1. https://www.youtube.com/watch?v=txD3vM9eLVw&feature=youtu.be
- good break down
- this one has MARA without any btc holdings which is incorrect. However, MARA purchsed their btc holdings whereas Hut8 mined their's
2. https://www.youtube.com/watch?v=vbgstGLGnHk&feature=emb_logo
- this talks about the top 5 miners good break down
Of course these are models and most likely wrong. However, they offer insight into miners.