Hotel
Airbnb in the best option and it is usually the cheapest way to lodge. There are many hotels to stay at. You can locate a few by doing a google search. Agia Marina, Agioi Apostoli, Platanias, Kato Stalos, Daratsos, Galatas are all cities close in proximity to the festivities. You can always stay in downtown Chania by the Old Venetian Harbor but keep in mind you will have a little longer drive to the wedding.
Travel Note
Chania International Airport "Ioannis Daskalogiannis" (CHQ)
Travel Note
You can do a google search and find the many companies that service the area. There are multiple rental car companies at the airport as well. You can also visit www.chania-rent-a-car.gr and www.autoway.gr