Im currently having same issue. I am already at 6th node, very close spacing and bushy.
I have been tucking some of the bigger fan leaves in.
Once the little nodes get some length it should be less crowed .
If I could go back, I would first top , give it a week or so and then start . But then again, LST is helping release the hormone auxin , which sorta does the same ? I am still learning as well.
Take a look at mine