So they're all feminized except one bag seed and that's probably from a herm, so it's probably fem. I would flip soon if you're set on not throwing females out. I wouldn't trellis yet, unless you don't mind the off chance that bag seed does wonky shit on you, like is a male, or worse, hermaphrodite mid flower. So maybe keep the trellis off for a bit and kinda plan on maybe tossing that one out if shit goes south.
This Lemon skunk I grew a few years ago would fill that space with one plant that size after stretch.
Do you know anything about the strains tendencies for plant shape? Get a stretchy pheno in there and it's taking over in that small of space.
Fuck, you got options. I certainly prefer to let seeds grow out more and show sex before flipping. I'll flip clones that vegged to that size, but with seed I think it's best to let them get close4 to their natural sexual maturity more or less.
Your plants look good. Well done.