Best nations to go Protestant/Reformed as?

I've never done a Protestant or Reformed game in EU4 so I think I wanna do my next campaign as one of the two religions. When I say "best nations to go Protestant" I mean ones which either gain significant bonuses from going Protestant or at least don't miss out on a lot of bonuses for not being Catholic (this would rule out countries like France and Spain). I feel I should also mention that I prefer playing wide as opposed to tall, so there is that to consider as well