Do you have a Chase branch nearby? If so, go to your nearest branch, ask to speak with a Business Relationship Manager and inquire about the Chase Ink Business Preferred ("CIP") credit card. I believe the in-branch offer on that card is still 100,000 Ultimate Rewards ("UR") points, worth $1,000 in cash or $1,250 (or potentially $1,500 if you eventually get the Chase Sapphire Reserve ("CSR") card) towards travel booked through Chase. If you don't have access to a branch, or the offer is no longer available, you can still apply online for an 80,000 UR points signup bonus offer. As a business owner, who is still under 5/24 (2/24 according to you), the CIP is the most obvious card to recommend because of the high signup bonus, the flexibility of UR points to transfer to airline and hotel partners or redeem like cash to book travel through Chase, and it's very strong ability to earn 3x UR points going forward.
ETA: I'll add that since you are only at 2/24 (2 credit cards in the past 24 months), you're in a really good place to get approved for many of Chase's most rewarding cards, and intersperse those cards with Amex business cards. However, you need to formulate a strategy, which we can help with, so you can identify which cards you'll want to apply for, in what order so you don't get tripped up by restrictions and rules put in place by card issuers that might lead to a costly mistake or missed opportunities, and what to do with all those points when you earn them.
We're really friendly here!
And everyone is willing to help and get you onboard for free and discounted travel! You should start out by sending
@SouthFayetteFan or
@Albort a message to join our Reddit group if you haven't already. There are more tips on the reddit group that may come in handy, as well as links to credit cards we encourage everybody to use whenever they apply so we all can give something back to this wonderful community.