What is the best motherboard for 600-700$ USD

Right now, I have:

T-Force DDR5 16x2 6400 MHz

Seagate Firecuda 530 (2tb)

GeForce RTX 4090 GAMING OC 24G (Gigabyte)

CORSAIR iCUE 5000X RGB (case)

CORSAIR iCUE H150i ELITE CAPELLIX WHITE

i9 13900k

PSU: To be decided (Has its own budget)

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I want the most I can get out of my desktop. Full potential. Any recommendations for motherboards?