It seems that you're looking at several Chase cards. I realize that the 1 app every 60 days saying is a myth - I was just approved for 2 Chase products - BUT, I went through manual underwrite and a recon on both and was asked why I wanted the cards (FICO is 750+). I'm not certain it's the best idea to app for THAT many cards at once. You should app for the cards with the best current sign up bonuses, not the the cards with a "standard" bonus.

As reference upstream, CB credit pulls database will help spread your inquiries across the 3 CRAs.