My two
Kanera
Kanan hogs the blanket, Hera cuts Kanan's hair. Kanan always makes the coffee ☕️, Hera takes the phantom to pick up pizza 🍕 (sometimes she sends Sabine). Kanan will play his music 🎶 out loud but it's mostly classical to help him meditate so no one cares. Hera can't stand when people eat in their cabins because she doesn't like crumbs because they attract lothrats (Ezra has a bad habit of this but she doesn't complain as much when he does it). Both Kanan and Hera are extremely ticklish. Actually everyone on the Ghost except Chopper is ticklish. Everyone sings and plays a different instrument 🎸 from their home planet. Kanan and Ezra play the most instruments though (Ezra can play spoons 🥄).
Sabezra
Ezra hogs the blanket (he's haunted by memories of cold nights on the street so she lets him). They don't drink coffee ☕️. Both always find a cup of hot coco with their names on it in the morning when they wake up. Sabine always assumes Ezra made it. Ezra knows that it's really Kanan making sure he's awake for early morning Jedi training. When Hera lets them they always go to get Pizza 🍕 together even though it's only supposed to be Sabine. Sabine is the one who plays her music out loud while she paints. No one complains about the crumbs in the bed.
Both Jedi proposed to the girls.

And the song challenge