Saka for obvious reasons.
Ramsdale for much the same reasons as rtc posted above, plus having been a keeper myself I always have a soft spot for them.
Zinchenko for his leadership, passion and the way he's completely transformed the way we play. He's replaced someone we all loved who was one of the first names on the teamsheet and we were talking about as a potential captain. Said it in another thread but it's rare for someone to come in from another club and instantly become one of your all time favourite Arsenal players. Only other one I can think of that did that was Cazorla.