Nice setup! If looking at gravel, there are tons of options. They range from “pretty much road bikes” to “pretty much mountain bikes.” If already on the Cervelo, I’d check out:
-Cervelo Aspero
-Salsa warbird (I love mine)
-Canyon grail
-Cannondale/Trek offerings
if you want to shell out bigger bucks: Ridley Kanzo or Open UP/UPPER. All are fantastic. All can fly on the road as well.
Also- Gravel-oriented carbon fiber wheelsets have gotten awesome the last few years. Worth the upgrade.