Just about any macrophylla will be happy under those morning sun/afternoon shade sunlight conditions. Try with any one shrub to start to experiment. Then add more in latter years. Over here, summer sun is the problem and the hydrangeas need shade starting between 11am-12pm ish. Check the plant size to make sure it will do well in the bed. Do not put them too close to the walls as that area sometimes tends to be alkaline due to leech from the cement. Maybe plant them 2 ft away or so?