Cleric alignment requesites go largely unnoticed by the player. staying within one step of diety is pretty easy, probably comes automatically to most people who would be interested in the class on the first place. Alignment gets complicated for them in considering if it’s appropriate to cast magic circle or not or holy word or not. but usually it’s safe to assume for those.

Paladin is responsible for I think almost all alignment hangups at the table. sure, there are others but not as often.

Druid probably would be because communicating the concept of neutrality is full of hangups but I think druids are pretty underplayed.