Let FIDE Senior Trainer and IM Andrew Martin introduce you to the Tiviakov method, where he covers all of 8.b3, 8.Re1, 8.Bf4, 8.Bg5, 8.a3, 8.Qa4 and 8.d5 and all in around an hour!
In this “Learn in 60 Minutes” GM Dejan Bojkov from Bulgaria offers a complete repertoire for White after the moves: 1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 when all the main moves are covered: 5…Bg4; 5…g6; 5…a6 and Tiviakov’s specialty 5…c6.