IMO it depends on the stain. If its is a new strain to you i would wait and see how she starts to grow and opt for LST. Through LST (bending, tying the main center cola down below the lower side branches) This will tell her to send more of the growth hormone to the side branches as they are now taller allowing them to catch up to the main cola. Your main goal is to try and make the canopy as even as possible. It is totally ok waiting to top. Can let her grow a few more nodes. For example grow a total of 7 nodes and if the main cola is still growing way more than the side branches you can still top the main to node 4 or 5, it all depends on the plant, how long you plan to veg, ect... Through LST alone for a lot of strains you can achieve a nice canopy with many tops (10+)
I would look at topping as more for slowing the main cola growth and allowing the the side branches to catch up so all can be nice tops with added bonus of doubling the topped cola.
Hope this helps! Happy growing!!