u/Salt_Anywhere_6604

I have a AMEX MORE Rewards with an initial $500 CL limit. My 91/3 is next week. It was my first CC I’ve had in 20 years. I also have a savings account and sig checking which I deposit into to pay my CC-which I utilize like a debit card and strategize on usage based on tips in here. I also have another CU Visa I got about 6 months ago with a $500 limit that I’ve done the same thing with. Before I got these I had no credit history. Everything else looks great, I am sitting around 730 all based on my new credit. My plan is to apply for a new card next week, then the CLI immediately after that. Which card should I try for next? I want to use it for booking air, hotel and car this summer. Thanks!