Cap Wizards, how do the Bengals sign Ja'Marr Chase, Tee Higgins, and Trey Hendrickson to long term deals without killing their cap space?

I would go for large signing bonuses then spreading the cap over many years to take advantage of annual cap increases.

However, I don't know if the Bengals owner has that much liquidity on hand for 3 huge bonuses. Even if he did, he seems pretty cheap and wouldn't want to pay it.