Those look super healthy. Awesome plants.
Depends on your intent. long vege? shorter vege? With that many, you probably won't be vege'ing long. Something many do the first grow is vege them a bit too long. Many of those continue to make that mistake for a while afterward too, lol.
I think topping and whatever training needed to even things out as it fills in is the best option for that space and 6 plants. The moment you have 4-6 colas per plant nice and even and growing vertically, probably good time to switch to bloom. ~3 more weeks of vigorous growth to come, even so.
You could bend them down horizontally and LST without topping, or also topping too. Unless you are moving to a larger space, i think the other option is a faster path to a well-filled space.