I think Caissie, Alcantara, Triantos, Canario, Murray, and Mervis are the sweet spot for me in terms of guys who might be valued highly enough by other organizations to pry away good quality players in fair deals. All are reasonably advanced and could conceivably be quality major league starters by the end of 2024, but there are just enough questions about each that I'd be okay with trading them away.
Horton and Wicks are my only untouchables (void for dream trades that will never, ever happen). I think PCA is still the top prospect in this system, but his callup gave me juuuust enough pause to slide him into the next tier with Brown, Shaw, and Ferris for guys who should be off limits unless it's a blockbuster franchise changing deal.
I'm torn on how I feel about Rojas and Ballesteros on the hitting side and Gallardo, Arias, and Gray on the pitching side. They're far enough away that it's hard to properly value them, so I'd prefer to keep them, but they're easy enough to dream on that certain teams could way overvalue them.