show a picture of the overall space.

Yeah, photos would help, as well as more info on your wants, needs, pets, zone and climate, etc. Grass may not be possible, but all shade doesn't rule out having a beautiful garden. Dwarf Mondo Grass can grow even in deep shade, plenty of ferns, even blooming perennials and shrubs, but all depending on your climate zone, soils type, exposure/orientation to the sun, even the types of shade trees can make a huge difference.

The other salient point, look around your neighborhood and see what does well that you like, take pictures and post here or take to a local nursery to help identify if you don't know jack about gardening. Get out and observe and record is the first step.

Also think about decking and hardscape, which can create and define specific areas.