Healthy eating help?

Is salad healthy? I want to lose weight so I'm going to start eating healthy but I know nothing about salad. What type do I buy? And how do I make it? I don't like the taste of ranch but I know there are others. I was thinking about going with the Kraft thousand island and the Kraft Italian. I've never tasted these before nor do I know if they are healthy or not. What are some healthy salad dressings? Thanks everyone 😊 Also what are some healthy snacks I can eat while trying to lose weight?