I could use some guidance in this area.

Current cards:

Chase UA Explorer
Chase Marriott
Chase Sapphire Preferred
B of A AS (just done in 2015)
Citibank Platinum Select (AA) (just done in 2015)

My FICO score is solid and it’s no big deal if it gets banged up a little. My spouse is not inclined to sign up for cards in her name (bummer) and does not care what I do as long as I don’t screw up. (As an aside, I truly admire the exploits of the folks in the MS thread. However, I would get torched by my wife if I did something that led to an account closure.)

I can generate $30K or so in spend in 2016 without too much trouble and can generate another $30K (tuition bills) for one of my kids. This would require the use of Plastiq or something similar and I’m willing to do so if I can capture some good signup bonuses.

Ideally, I would like a couple cards with high spend and high bonuses in return.

As far as I can tell, the Chase BA and B of A Virgin Atlantic look the best in this regard. I am less inclined toward cards (but willing to consider) that offer things like lounge access with high annual fees.

Thank you for any guidance you may offer.