Other kids of similar ages that have (successfully) gone through divorce.
I had a therapist well versed in both child and adult trauma, this was essential for us as leaving an abusive marriage is different than the issues kids in most divorce books are facing.
But many parents I know use my kids okay-ness to show their kids they can be okay too. Happy even! My kids also have developed a lot of empathy through this whole experience and it is amazing seeing them offering a little support here and there to other kids.