Aero looks cool on gravel until you accidentally gash your expensive carbon wheel on a sharp rock. So I would keep that in mind when choosing your rim depth. I think anything under 40mm depth looks good with a fat gravel tire without being overly exposed.

Also I would look into areas you can cut weight on your gravel bike. If you're climbing, I'm a big proponent for weight reduction and getting your gravel bike as light as possible without compromising durability.