>>2263805That's ideal. I tour on an aluminum road bike that i've maxed out in terms of tire width. Serves me fine, but will most likely pick up an older steel frame touring bike down the road, probably something like a Trek 720.
The main drawbacks on using an actual road bike is the inability to mount wide enough tires due to not having cantilever brakes (solved if you run disk, I don't), clearance issues, the lack of friction shifting on a modern road bike, and the lack of rack mounting areas (can be solved easily, never had an issue where I didn't have "enough space" for all my gear, but I travel light. .
A kitted Gravel or Cyclocross bike with disk brakes would probably be best if you want something versatile. I've thought about putting 700x37c knobby tires on this old fixed gear I have and using it as a touring bike because i'm an idiot.