Do you mean if the book flips back and forth between first person and third person? Then no, I’d say read a book that’s entirely in first person- meaning even if it’s multiple PoV, all PoV chapters need to be first person.Two questions:
For first person POV books, if it's a multiple character POV do all of them need to be in first person or it counts even if one of them is?
Duologies and trilogies also count as series right? We're not just considering the longer ones here?
For the second q: Yes, any series will do
153