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.