Originally Posted by
fishboat
I agree with this. From a geometry perspective they are just varying shades of overlapping grey. Really the only frame related things that separate these various disciplines (i.e. road endurance, touring, gravel) are tyre clearance and mountings for accessories like mudguards, panniers, bottles etc. Gravel bikes tend to be the most versatile, with clearance for 40+ mm tyres giving more options (especially if you add an extra set of wheels). Gearing will also typically vary between these categories, with gravel and touring bikes tending more toward lower gearing ranges and increasingly 1x drivetrains with very wide range cassettes.
Sounds like the OP would be well served with a modern gravel bike from any of the major brands.