What kind of help do you mean by helping?
Are you helping the temple where you got married? Do they live together?
Also, are you going to help visit other temples?
The meaning of “help” is difficult to understand. If it's a tour, it's more about praying than helping.
If you're helping out at the temple where you got married, you're no longer a customer, but a family member, so ask your husband, the chief priest, or mother-in-law who became your family. Why don't you bring something you like without thinking too hard about it as a souvenir every time?
Also, if you can go to another temple, the other party will receive an offering (souvenir) from the chief priest, so be sure to ask the chief priest.
There are differences in temples and purposes, and there are various ways to socialize depending on the temple. So it's best to have your husband or chief priest ask you anything.
Please teach me in a positive way. That's the shortest route.