Where do you guys buy your parts (Europe/Italy)?

Hi guys, I'm struggling to find some components in local shops in my area (Naples, Italy, Europe, World, quite far for France). Amazon doesn't have many components needed for pedal building, or if they do, they are stocked somewhere in China, come in stocks of 10 pieces, are contained in useless kits or are a little bit expensive (as enclosures or 3dpt switches). So, is there any reliable ecommerce with decent prices shipping in Italy you can possibly recommend?