First Grow, Critical Purple

Very minimal defoliation for A); only fan leaves blocking prime bud sites. Moderate defoliation for B); this one has struggled the entire grow, but I notice it does well after defoliation. I think she's just too thicc for her own good! I am worried about the density of foliage on A). She's furthest along so I don't want to stress her, but I'm also terrified of bud mold. Open to any suggestions. Minimal LST for both plants. They've got about as wide as I can handle. It's my first grow, so I'm seeing how adding all these extra bud sites can cause space issues. I'm seeing a lot of leaf clusters/stacked/crunched leaves.