My wife just clicked down to 3/24 on April 1. By June 1 she will be 0/24. We are hitting Chase with the LARGE min. spends first - here's our rough strategy:
12/2017: Delta Gold Biz (counting for 2018 since most of the spend was this year - we cashed out via Target gift cards)
01/2018: AMEX Blue 4 Business Plus
04/2018: CIP (approved and working on min. spend now)
07/2018: CSR/CSP double dip
TBD Late 2018: TBD AMEX Biz card (to slow the roll with Chase)
Late 2018/Early 2019: CIC
Beyond that she will hit SW Biz, SW personal, CF, CFU
I will click under 5/24 in spring 2019 and then I can hit CIP, CSR/CSP, CIC, etc. myself
We basically have a strategy that goes 2+ years out from now