Last year I got a mix of mostly chocolates, and some other candies I considered filler. When I let the kids choose I noticed they didn't choose the chocolate, but I don't remember what they chose.
I probably gained three pounds.
Please, what should I buy that the kids will like?
Candies are basically divided into 2 categories: chocolate and fruit. I know there are some exceptions but in reality most candy can be placed in one of 2. Sounds like your neighborhood likes fruit based so skittles, gummy worms, stuff like that.
Also consider avoiding peanut/nut based candies since lots of kids are allergic. If you live in a hot climate chocolate might not be popular cause it melts. M&M's are your go-to if you need a choco option.
Me, I like chocolate over fruit snacks. Doesn't mean I don't enjoy some quality artificially flavored fruit chewies but I'll always grab M&M's over skittles.
Don't forget the bastard candies: twizzlers, wax lips and smarties.