I read very good fics about general Hux being publicly abused by his father yet I would love to read hurt/comfort fic about adult Hux dealing with his abusive father who is more subtle about it. Hux senior for most people seems to be a charismatic yet charming person so no one really knows that privately he abuses (beats & verbaly humiliates) his son all the time.

In short: Hux Sr. is visiting/inspecting Hux's ship and no one knows he is abusing his son. Except for Ren who thanks to the Force can feels general's absolute fear of father.
Gen or Hux/Kylo whatever suits you!

Bonus: crew adore Hux's father; they think general is a bad son for not wanting to spent a bit of time with his dad.