Ok, I still think cockatiels would be a safe bet, or a green cheek. Green cheek conures are part of the pyrrhura family (unlike their louder cousins, sun and jenday conures) and therefore are a bit quieter. They still have all the personality of a more “expensive” bird like a senegal, but are generally less moody, more receptive to multiple handlers, and come in many color mutations.
I worry for you in an apartment if you get a sennie who decides to contact call whenever you aren’t around - it’s going to be loud and piercing and it will absolutely carry through walls. We had our tiel in a condo and the neighbors couldn’t hear him - but they could definitely hear our amazon.
Humorously, they mistook the amazon for a person because he likes to yell “HELLO!”.