I remember there was a thread on this sometime ago and it garnered many interests. Are you looking to offer your skill/expertise in return for guidance on some other skill? Please list your requirement here.

I am looking for help on CSS. I have read many books on it and many online courses but I could use an expert guidance when using it in real projects. I can offer you help on building web/mobile backends, REST APIs and implementation (Java/Python) and system scaling