Beating Alekhine aggressively

U should ask Lyudmil Tsvetkov
https://www.chess.com/forum/view/chess-openings/is-alekhine-s-defense-the-best-black-move-in-the-opening?page=18
Personnally I think this is very risky over the board.
A good line which is agressive is 1.e4 Nf6 2.e5 Cd5 3.Bc4.
Another idea is to play 2.Nc3, with the following lines on d5 :
The only problem with it is 2...e5, transposing into Vienna or 4 knights variation on 1.e4 e5...
So if u don't like these lines on 1.e4 e5, not the solution...
Possibly helpful:
Playing 1.e4 - Caro-Kann, 1...e5 and Minor Lines by John Shaw
http://www.qualitychess.co.uk/ebooks/Playing1e4CaroKannandothers-excerpt.pdf
My First Chess Opening Repertoire for White by Vincent Moret
https://www.newinchess.com/media/wysiwyg/product_pdf/9033.pdf
https://www.chess.com/article/view/how-to-understand-openings
A Simple Chess Opening Repertoire for White by Sam Collins
http://www.gambitbooks.com/pdfs/A_Simple_Chess_Opening_Repertoire_for_White.pdf
http://www.jeremysilman.com/shop/pc/A-Simple-Chess-Opening-Repertoire-for-White-76p3916.htm
A Chess Opening Repertoire for Blitz and Rapid by Evgeny Sveshnikov and Vladimir Sveshnikov
https://www.newinchess.com/media/wysiwyg/product_pdf/9020.pdf