Personally, I'm a Scrog noob.
That being said, from what I'm seeing here,I think it would make sense to top again and let it grow 1.5 -2 more weeks. Or even just doing LST for a few more weeks.
More specifically, I'd say, do another topping in a couple days, and a trim of bottom growth you don't think you'll want. After that I'd last let it grow 1 more week with no trimming or anything and then flip to flower at the end of the week, with maybe a final trim depending on how you're feeling/ how bushy it gets.
I hope that helps! Cheers!