Hi Dawn! I love how you have nothing in your backyard... you start fresh :)
I say Google pictures online to get an idea of what you might like.
One area in my garden I have hosta and daylilies...don't needs regular watering.. drought tolerant perfect... loves shade.
In a sunnier area in my garden I grow drought tolerant sun loving perennials.. clematis, purple coneflower, zinnias, and marigolds - also attracts butterflies!
Please post pics with what you decide to do in your garden