Suggest any platform other than LinkedIn to find a mentor?

First of all, my apologies if this is not the right platform to ask my query. I am an MBA HR final year student who is in need of a mentor. Can someone here help me find one or suggest any platform other than LinkedIn to find a mentor? Please reply if you can help me.

Thank you

Dear friend,

This forum has many active members with rich experience in pure HRM domains and IR. Just selectively go through their past responses to the topics of your interest and try to establish contact with them by sending private messages on issues about which you are doubtful.