For me, the best champion combo to have is Braum with dragon. Getting regeneration, on top of a big health pool and the ability to get +1/+1 is awesome. That, on top
Here are League of Legends' best champion combinations | PCGamesN
The coolest hack combo for Hyperion — Marvel Contest of Champions
The best duo champions and champion synergies in League of Legends: Wild Rift | Pocket Gamer