Hello my friend, how are you?
I only grow autoflowering strains and in my diary, I've practiced several techniques on totally different strains. On some, I've combined multiple techniques like on my Gorilla Glue from FastBuds where I notably did some LST, topping, and pinching of the apex. On my Bubble Gum, due to pinching the apices, its flowering started very late (53 days). I even had to force it to flower by giving it cane molasses (a teaspoon in addition to my nutrients), but wanting too much from it led to a lock-out!
The predefined lifespan of autoflowering strains doesn't allow us to push the different growing techniques too much.
The most suitable for yield is undoubtedly LST for me.
May the force be with you 💪