Better As Friends has these relationships to other tropes:

parents kids shares a parent with:
Just Friends
Amicably Divorced
Belligerent Sexual Tension
I Dont Want To Ruin Our Friendship
I Want My Beloved To Be Happy
Romantic Runner Up
parent child
Just FriendsStupid Sexy Friend
''Childhood Friend Romance
You'll need to Get Known if you want to add or modify these relationships.