Ask HN: How to Find Career Mentors?

Basically I am stuck at a job since last 8 years. Moved up the ladder from engineer levels to engineering manager (2nd highest layer in my company, only a VP is above me in my dept). Now feeling bored and less motivated at current role, I am looking for a new role and a challenge. I love tech and business although sometimes I feel outdated with tech but I still write code (mostly prototypes whenever I find time).

I feel I need a coach or a mentor who can help me guide through areas I should focus for next couple months/years so that I can break into exec levels at another company. Unfortunately my network is pretty weak. Any pointers?