Definitely one amp and multiple guitars... pretty much what I’m already doing. One amp with pedals for getting different “amp-like” flavors is plenty, and if I want/need more sound I can always mic the amp into the PA.
I’m currently at 17 guitars and love them all for different reasons... the feels, the sounds, the different flavors or styles that each inspires me to play. I definitely have a number one, but for me playing each of my guitars is a real, unique, and personal experience. Amps to me are simply a means to an end, but guitars are deeply personal.