This one is really similar to our older sibling/younger sibling answer.

1. Any of my ships that fit it

Chris x Claire Redfield, Taichi x Hikari Yagami, Jean Paul x Jean Marie Beaubier, Alexia x Alfred Ashford, Sier x Dier (girl frontline), Dave Strider x Rose Lalond,

2. General Opinion

Its one of The Big Ones.

3. Any ships that aren’t canon it But I’d read w/ the trope

Basically anything.