I like this one. Very hydrating and it turns to a light lovely shade of pink, not shocking or garish. When I apply it throughout the day my lips get stained and they look pretty. This one is top rated and most places costs less than $9.
Maybelline New York Baby Lips Glow Lip Balm in "My Pink"

ETA-
Shop around for a price. I just saw it for $3.48 on Walmart dot com.