Push, pull, legs is a really good style of training as it lets different muscle groups rest while other trains. Even though you’re training 6 days a week, your major muscle groups are only training twice. This style can help maximize recovery and thus muscle gains. If push, pull, legs isn’t your style you can switch it for chest and triceps, back and biceps, legs, shoulders, lower body, and upper body. This split allows your to gain more variability in training. Alternatively, adopt different body training splits such as upper-lower training splits.