Hi Hinda,
I know you have been busy.
I would start with
succulents. Here is a link to one that I grow as a house
plant.
Dudleya gnoma I would look up runoff farming to get an idea of how you need to work with different elevations inorder to effectively utilize what rain water you do get in your garden area.
There are suppose to be 6 different
growing zones in Israel so you need to identify which one you are in so that you can tell which
plants are hardy in your area.
I would also start by developing your rain water catch system before starting to
plant since it will be so necessary to your
plants.
Next would probably be to get a pH testing kit so that you can find out how acidic/alkaline your soil is. That way if you need soil ammendments you can do that now before anything is planted.
Then observe the garden so that you know how much shade and if it is morning or afternoon shade that your garden gets.
For your online search I might try Mediterranean Subtropical and Tropical
plants.
That sure is going to be different from Canada.