Hello and welcome!
What you snack on really depends on what works for you and what you like. For example, my friend loves low fat dairy like cottage cheese or yogurt, and she loses weight. Right now I'm liking fruit and a spoonful of peanut butter. Some people might do half a turkey sandwich or a bunch of fresh green beans. There's not really a magic number - it's just what makes you feel full and what you like or accept eating.
There's a lot of good information here in the archives and in the people still around. Feel free to dive on in!