Bluefin in New England
FWIW, right now the chance oif catching a 100+ lb bluefin on a fly rod off Provincetown, MA, is higher than it's been in years. I'd say it's almost a given if you put a couple of days into it and match up with a guide who does these sorts of trips.
I'm not trying to plug guides, but fish really have shown up in unprecedented numbers this year. I'd be glad to answer any related questions.