Hi
Traveling with family who, while ambulatory, tire quickly and have difficulty with steps.
Any suggestions for guidebooks may be more geared towards those us limiting our walking.
Thanks
Check out Rick Steves article and links for those with limited mobility for ideas:
https://www.ricksteves.com/travel-tips/trip-planning/travelers-with-disabilities
Not quite what you're looking for, but a lot of the river cruise companies have a limited mobility/slow walkers option for their daily included tours. I know Viking does this.