If you want to grow plums, you should consider planting two to ensure good fruit set. Below are some varieties to look at. Each of them has their own flavor. while some of them are self-fertile, having two will give you more fruit.

Red Maples are beautiful and I am adding a link to more information. They are native to Minnesota. They are fast growing and will eventually give your house some shade and wind protection. You may also want to consider other trees that will do well with climate change. Below is a list of trees that should grow well in your location in the years to come.

https://extension.umn.edu/fruit/growing-stone-fruits-home-garden#plums-682262

https://conservancy.umn.edu/handle/11299/198102

https://extension.umn.edu/trees-and-shrubs/red-maple

https://www.dnr.state.mn.us/treecare/best-native-yard-trees.html

I can’t tell you what kind of plum tree this is from a photo. Identification relies on leaf color, flower color, size and fruit characteristics. Since this plum tree was there when you moved in, we don’t know if it was purchased locally or ordered online. 

That said, there is a purple plum tree that is hardy to zone 5a and 5b. It is ornamental and mildly toxic to humans and dogs.

https://plants.ces.ncsu.edu/plants/prunus-cerasifera/

You may want to check with a local nursery to see if they have ornamental plums or can order one for you. If you are not growing it for the fruit, one is fine.