I love museums in part because I love learning. Before my mother became too ill she took my sister and I to the Children’s museum in Houston, Texas. I loved it. I absolutely loved it.
Any teacher with experience in any field (elementary, middle, high school, English, Math, Science, or History) will benefit a musuem because you have the ability to coordinate events, set up displays, and take groups on tour at the museum.
I encourage you to inquire at not only museums but National landmarks that are operating as museums as well. You will find the opportunities bountiful.