At this point i'm thinking that the 3 Beast paradoxes will be sharing Dragon type, while the 3 Sword of Justice paradoxes will be sharing the Psychic type.
Water / Fire / Electric + Dragon
Grass / Rock / Steel + Psychic
It's an interesting thematic, the past paradoxes using Dragon type is probably based on that ancestral feeling, and them being originally monotypes works nicely adding Dragon to their original type.
I was surprised however when Iron Leaves was revealed to be Psychic / Grass. I was expecting that those would have kept the shared type (Fighting) and changed the other one, but they opted to actually change the Fighting type to Psychic while keeping the other one.
I am moderately interested in the two speculatively unrevealed ones (Entei and Terrakion), as Fire/Dragon and Rock/Psychic are pretty rare typing. (with Fire/Dragon also being one of the best dual types in the game as a Dragon type not weak to Fairy nor Ice and able to hit Steel and Ice supereffectively)