What should I give to my girlfriend's uncle, her own brother and her uncle at the same time?

It is best to give your favorite gift. You can ask your girlfriend what they like. If your girlfriend doesn't speak well, you can send some tasteful gifts, such as new tea this year. Then praise them and say: I feel that you have good taste, so I didn't buy particularly tacky cigarettes, alcohol and the like. Anyway, if it looks good, just let them think that this gift is specially for him!