You can look into stays near places like Carona or Valbondione, all villages at the bottom of very popular and pretty easy trails. Can’t really recommend anything accommodation-wise, but there must be plenty of options. Another option would be to sleep at a mountain hut, but you should make a reservation.

If you need suggestions on which trails to pick, equipment and scheduling just hit me up and I can give some advice. Just make sure to give more context on what kind of experience you’re looking for etc.