Best tops for nursing?

I’m hoping to breastfeed my second, I EP’d with my first. What is the easiest thing to wear to nurse in public? I’ve seen tops with the discreet flap so that you can poke your boob out. But it seems like an investment in getting a bunch of those for a temporary purpose.

Any suggestions from pros? V-necks? I really don’t want to have to lift a shirt all the way up to cover my flabby stomach with a blanket!