Completed your circuit of the Tour du Mont Blanc? Why not explore the French Alps from a different angle, walking from Montreux to Chamonix on the GR5?
Or if you're looking for more of a challenge this time, the Walker's Haute Route and the E5 Alpine Crossing offer a more strenuous level of hiking.
Alternatively, you can always tick another iconic trek off your list with the Alta Via 1, or try something completely different on the Kungsleden in the Arctic Circle.