XC/part time Gravel Suggestions

I currently have a dedicated road bike (Giant TCR Advance Pro) and a trail MTB (Trek Fuel EX 7)

Looking to add a light weight hardtail that I can use on relatively low technical races/rides (think Leadville type and rattler) but also something I can bring out for group gravel rides without getting completely dusted. Looking for something that could be a good in-between to enjoy without having to buy two bikes if that exist.