I'm currently subscribed to these channels. Feel free to add more in the comment section!
Minting Coins
https://www.youtube.com/channel/UCUg2H9wW7XQ2QpXK6utoqIQ
RoadtoRoota
https://www.youtube.com/channel/UC73WeDULjX2BwsSmICJ0y0w
ChampagneCrypto
https://www.youtube.com/channel/UCOeDVSPVvPN_2b4Uq73DORQ
World Crypto Network
https://www.youtube.com/channel/UCR9gdpWisRwnk_k23GsHfcA
Ethereum
https://www.youtube.com/channel/UC6rYoXJ_3BbPyWx_GQDDRRQ
Ethereum Foundation
https://www.youtube.com/channel/UCNOfzGXD_C9YMYmnefmPH0g
Bits to Freedom
https://www.youtube.com/channel/UCHHtN4LNc34zswfKhvNgPLg
Cryptocurrency Investments
https://www.youtube.com/channel/UC8NnPYYinxhIPBcchjlN1bw
Boxmining
https://www.youtube.com/channel/UCxODjeUwZHk3p-7TU-IsDOA
Node Investor
https://www.youtube.com/channel/UCa81HAp1se359Sr5qEMMP7A