Lots of good options above.
Note that Compass / Rene Herse tires are unbeatable in terms of feel and speed but have extremely fragile sidewalls. Worth it to give them a try but might leave you stranded.
I'll also throw in:
Maxxis Re-fuse - more of a tough road slick, very fast
Maxxis Rambler - basically a Re-fuse with knobs. Still very fast rolling
WTB Resolute - tan walls, great tread design. For medium gravel and a bit of mud. Love these tires.
Schwabe G-One Bite - a more knobby version of the regular G-One. Supposed to be really good, fast.
Donnelly X-Plor MSO - my go-to gravel tires. Great puncture protection, durable tread, relatively fast rolling, good traction in a bit of mud. One potential drawback: don't clear mud as well as other options.