I can recommend you look on YouTube for "Hacking The System channel - Ian Balina" He is ex. IBM employee that left corporate job and started full time in crypto currency field.
His website:  http://ianbalina.com and YouTube https://www.youtube.com/channel/UCX7gMIA3ZaifTrt93E-_aYQ

and few good channels to look:
- Crush Crypto https://www.youtube.com/channel/UCu1-oBOM-DzJ89o02Bx3XYw
- Crypt0 https://www.youtube.com/channel/UCdUSSt-IEUg2eq46rD7lu_g
- Ivan on Tech https://www.youtube.com/channel/UCrYmtJBtLdtm2ov84ulV-yg
- CrushTheStreet https://www.youtube.com/channel/UCPe_oKuUv9PYACjay_Eztcw
- Ameer Rosic https://www.youtube.com/channel/UCaPSoa3hoxgouMd8YdlUwXQ
- Crypto Tips https://www.youtube.com/channel/UCavTvSwEoRABvnPtLg0e6LQ
- BitcoinMeister https://www.youtube.com/watch?v=-fzitVpjPag