Ask HN: What happen after Product-Market Fit?

Hi HNers,

I am the founder of LiNote and we have reached Product-Market Fit. Up to that point, everytime I felt lost about the next step for my company, I found some valuable resources online from smart folks who have been there before. The ones from YC often being the most insightful.

Now than we reached PMF, resources are almost non-existent. I found two good books ("the great ceo within" and "high growth handbook"), 1 post "after PMF", and that's it.

So I am asking if some of you had the same issue, if you known some useful links or if you had to rely on other "resources" like maybe mentors, founder groups, etc. ?