Anyone who is a fan of Alex Astaneh Lopez, aka Expert of CaroKann http://tr.lichess.org/@/AstanehChess

Attention: Must be known CaroKann!!!

You can learn a lot of stuff from his YouTube channel at
https://www.youtube.com/channel/UCNB4vCw1iI8c-vMkgPZIz5w

His Fide Card https://ratings.fide.com/card.phtml?event=2501430

His Coach Profile https://tr.lichess.org/coach/AstanehChess

and

Notable games

http://www.chessgames.com/perl/chessplayer?pid=95968