Cicerone is by far the best publisher of guidebooks for hiking Europe.
Podcast episode 28 gives an overview of their 162 guidebooks to Europe.
Too many good choices in that continent. This is a good place to start.
One of my favourite outdoors podcasts is 10 Adventures.
Check it out.
A good starting point is their interview with Jim Kern on how to Save America‘s Outdoors.
… As the founder of the Florida Trail, co founder of the American hiking society, and president of Big City Mountaineers, Jim has led an awe-inspiring life and career that has gone far beyond the scope of just his own adventures, helping at-risk youth by introducing them to the outdoors and inspiring real change. …