I only had to handle the annoying Grand Prix attack once, and I didn't know how to defend it. So, I went for my usual Italian Game development and did not do the fianchetto of my dark-squared bishop.
For Sicilian players: Handling the annoying Grand Prix Attack
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As a classical Sicilian player, 2...Nc6 is my preferred move against 2.Nc3 because if we go into lines with 2...d6 then there is a line that we can't avoid with f4-f5 being pushed & we just have to deal with it.
My preferred setup
I like this one too