As a former provider on Helpouts (https://en.wikipedia.org/wiki/Google_Helpouts) who was sad to see it go, I am excited to see more products like this. Good luck!
Honestly, I can't recall much outside my area of expertise. There were quite a few fitness folks on there, though.
I wound up doing maybe a dozen or so "Helpouts" and it was a good experience. I still have my hoodie!