Broadening a subject, I was a mentor to a few junior devs and loved the experience. This was in my last full time employment. Now I became a contractor for all

Broadening a subject, I was a mentor to a few junior devs and loved the experience. This was in my last full time employment. Now I became a contractor for all the perks involved but I miss my mentoring role slightly. Do you know of any good places online where I could help someone with building their skills?