It seems every deck suggestions out there is for either 1 core set or 3 core sets. Does anyone have any good deck suggestions for 2 core sets? Or at least a way to extrapolate a good deck from a 1 or 3 core list?

Thanks

I'd take the suggested cards from the one-core lists and double up on the cards that look interesting. Your options are really kind of limited with two cores.

Look at what the decks are trying to do and remove cards that don't help and add cards that do. Or just get as close as you can to three core decklists and fill out the empty slots with cards that look interesting.

2-Core decks are awkward but your best bet would be to take a 3-Core list and add in cards of similar cost to the missing 3rd copies. Otherwise add in cards you want to try out. 2-Core isn't a format to be competitive in so play around with some things to see if buying another Core set or a cycle pack or two will flesh the decks out the way you want.

Oh, also look over at CardgameDB. That's where most of the talk for all of FFG's cards games happen.

FiveRingsDB is a good place to look too.