If you are looking for low maintenance, think small shrubs.  Or you could try some perennials suited to the sun/shade of the beds.  We also have a plant selection tool. I will give you a link.  Also, consider visiting your locally owned garden center.  They will have knowledgeable staff to guide you.  Make sure you know the sun/shade amount and size of each bed.  https://plantsearch.extension.umn.edu/home/list?page=list