Ella & Haymitch
Haymitch was definitely a devoted dad, sure he had his grumpy moments but overall he was just happy to be a dad. Steph may not have been planned but he wouldn't change her for the world. Even if it was a slightly different skill set to learn that the things he'd learnt in handling Katniss.
"Oh I have no doubt we'll have cross words at some point, but hopefully it'll be a good few years until that point" He gave a wry grin, he wasn't looking forward to teenage years but he'd handle it.