I honestly don’t know what to tell you. I kind of like doing the same thing over and over and over. LoL Consistency. I like using one thing and getting better and better at it. I don’t like moving targets. Frankly, I think you’re going to need to decide how much you really want it, and then bear down, focus, and work at it without jumping back and forth all the time. Maybe pick three good leg movements, and rotate them, doing one on Monday, one on Wednesday, and one on Friday (or w/e days you lift on). Each time the lift rolls back around, try adding more weight than you did last time, or try adding more reps, or add another set, etc. so you’re constantly getting stronger at the lift. After you’ve worked on those 3 lifts for 6-8 weeks or something, try 3 new lifts. I don’t know if that’s a “great” way to do it, but it might be a compromise between what’s “best” and what you’ll actually stick with.