Brave And Zootopia, Lion King / Lion Guard and Brave like Princess Merida meeting Reirei, Bhati, Rafiki, Dhahabu, Makini or one of the brave Lionesses in this cast. She'd even have fun with character like Sofia the first, or the Aristo Cats for sure or even meeting fairies like Tinker Bell. Scenes of Royalty
Merida's brave she'd likely enjoy meeting birds like Flit, Iago, or the birds in movies like Finding Nemo and Finding Dory or the eagle in The Rescuers DownUnder., Plus it's for sure she'd enjoy crossovers with the Koda from Brother Bear Merida has plenty of courage to meet a fun calm bear cub like him for sure. Merida could even go on an adventure in Africa with Tiana they could dance at the bay together with characters like the cranes and other animals. Scenes of Wilderness
It's those like Mushu, Pegasus or Genie I can see Merida meeting with great excitement in an active crossover for sure. She'd likely have great fun with Elena and the Jaquins too. A magical crossover Merida would also be quite fun to see in a poweful crossover with the videos such as Fantasia whether video, parade or a play. Scenes of Fantasy.
Mainly a fairy tale crossover is the type I'd put Princess Merida in most frequently whether play performance, Pararde characters dancing, or magical crossover videos. But it's character like these mentioned here that I can Merida joining quick with joy. It could even be this whole list of poweful characters altogether, if that happened then I'd let Princess Merida be the leader.