Do Ginny and Harry kiss in any of the books?

yes, they get together in the 6th then break up and kiss in the 7th and then get back together in the end of that one

They kiss in the 6th book, Half-Blood Prince, which is the start of their relationship.

They also kiss in the 7th book, Deathly Hallows, on Harry's birthday even though they are not together (Harry is protecting Ginny from Voldemort).