Here are my favorite sailboat charter companies. I have checked their terms with them to make sure they are focused on you, not just their margins.

Europe & Mediterranean

I recommend Yacht Rent (new tab)

• Best for Mediterannean, France, Greece, Italy, Croatia
• Customer-focused
• Leave your details and someone will call you to help you out

Yacht Rent has a lot of high-quality boats and outstanding customer support. They are based in Croatia, but they operate in many Mediterranean countries. They run many discounts so you'll be able to find an affordable charter anytime.