When you move to a new house, you must congratulate them. A new house gathers energy, and more joy is good for the owner. Receiving gifts also means gathering wealth. So bring a casual gift, which is also polite. I believe it will make the host very happy. As for the gift, I can give you some small suggestions:
1. Since it is a new house, it is a good choice to bring a home decoration. You can ask the owner about the decoration style. It is good to bring a Western or Chinese home decoration.
2. You can also bring a bouquet of dolls. It is not as ordinary as real flowers. You can disassemble the dolls in the bouquet and put them separately. It is a very creative gift.
3. Of course, you can also give a big shy bear. It is a very good home decoration to put it on the sofa in the living room or in the bedroom. The owner will definitely like it.