There are a ton of hotels and airbnbs in Galveston but I do recommend booking ASAP as Dickens on the Strand is the same weekend and hotels are likely to fill up quickly.
Hotel
Grand Galvez
2024 Seawall Boulevard, Galveston, TX 77550
This is where the ceremony and reception will be held. Use link: https://www.marriott.com/event-reservations/reservation-link.mi?id=1682434526270&key=CORP&app=resvlink to receive 12% off. This link will expire 14 days prior to check-in.