What is your favorite ship trope?

It doesn't have to be a "dead dove" one, but I would love to hear from people here~~

My fav ship trope is power imbalance! It can be of any genre of ship--age gap, shipcest, general ships, any kind!! I love ships when there is one in full control of another! 

Ofc I have other tropes I enjoy, but this just seems very common in most of my ships