Can I mention multiple faculty members in my SOP?
I'm in a program (and went to a program) where students are admitted to the program, not a lab.

When considering students, I'm actually quite nervous about those who only mention a single professor they're interested in working with, as that's not a particularly robust "plan". What if they don't get tenure, or are recruited elsewhere? What if they have a personal emergency? What if they just don't have funding for a student right now? What if it turns out you just have wildly incompatible working habits (this happened to me)?

I'm going to echo Buffy's suggestion - don't try to write your SOP as the optimal solution to a game whose rules you don't know. Write about your interests in the program, and how that applies to one or more specific faculty members.