Yeah, try some lst. In that way You can save time and get more bud. I think lst or scrog is most efficient way to grow in fridge like You have.
And looks that You stated to grow bubblegum some two - three weeks too early.
Manage to finish those flowering plants and save bubblegums - thats Your mission.
And there is another option - take clones from bubblegums. When flowering plants will end, clones will be a bit smaller than Your bubblegums look in the last pictures. And thats gonna be a small see of green.