There's a world, probably not option #1, where Busch is playing 3B and somebody else is at 1b. At least he gives us flexibility to find either a 3b or 1b to replace Paredes.
Bellinger can play 1b but he's likely gone, so then we have Ballesteros, Mervis internally, maybe Long especially later in the year? They can acquire an MLB corner guy via trade or FA too.
Shaw now seems the #1 option at 3B and Triantos at 2b moving forward when Nico leaves. I like the floor on Triantos but not a high celling.