Which personal Credit Card should I choose for client entertainment?

Hello,

I need help in choosing a new Credit Card that offers best value for flights and/or accumulation of points.

For Context: I work in Sales in NYC and frequently take clients out to lunches, dinners, drinks, events, etc. My new company allows me to use a personal CC and expense the charges. I expect to spend somewhere between $45-60k in 2024 for client "meetings" (which are reimbursed via direct deposit from my company).

Current cards:
-AMEX Platinum, $100k limit, opened 2012

-Macys/Citibank, $800 limit, opened 2018
-Capital One Venture X, $30K limit, opened Sep. 2022
FICO Score:

-March 2023: 778 / NOW: 689 (I got penalized for CCU @ 56% on Venture X card)
Oldest account age:

-12 years
Chase 5/24 status: 1
Income: $150k-300k
Average monthly spend and categories:
dining: $1500 (personal, not for business)
groceries: $400
gas: $0
travel: $1500
other: $?
Open to Business Cards: No
What's the purpose of your next card? Travel, Hotels, or most points
Do you have any cards you've been looking at? No
Are you OK with category spending or do you want a general spending card? Open to either