So I was thinking, when Dipper and Mabel come back next summer, even if Stan and Ford are still off on their sailing adventure, the kids could probably stay just about anywhere they wanted to.
Soos would 100% let them stay at the shack. He would probably keep rooms for Stan and Ford always clean and ready too for when they come back.
McGucket has tons of extra rooms in his mansion, and would totally let them stay. He is still so thankful they helped him get his memory back, and honestly he would love talking science with Dipper, and of course finds Mabel absolutely delightful.
Even Mayor Tyler would probably let them stay in his mayor mansion lol because they’re like the town heros. Even Pacifica would probably let them room in her still-big-but-not-a-mansion home.