There are many great hydranges to choose from. If the shade is pretty bright at least for part of the day they should bloom well. I think I'd start with one of the Hydrangea macrophylla varieties.
Go to the following web site which will allow you to search for Monrovia plants by name, and type in "hydrangea macrophylla". You'll get a listing of varieties which you can select from for more info and in some cases a photo.
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