I just pulled mine yesterday. I'm going to try the box method this year.
I shook off all the dirt and put them in boxes. I'm going to store the boxes in a room above my unheated garage. Hope it works!

"Best" is relative. Best for you may not be the same as what's best for the plants.

I overwinter my favorites in my living quarters. Some of them bloom, I can pet and sniff the scented ones, and all of them have luscious green leaves for me to admire. This helps me stay happy through winter.

I dig and store mine in paper lawn bags. Do a board search and you should find a description of how to do it.

If you have a space with light I would try that first. Place them in the brightest spot , the cooler the better, and don't water more than once a month. They'll drop leaves but not grow much until you start watering again in spring.