Toast the baguette slices in the oven for about 10 minutes at 375 degrees F, or in the air fryer for 3 minutes. Drizzle 1 tablespoon of olive oil over the crostini.
Mix the shredded chicken with the buffalo sauce and heat it in the microwave or on the stovetop until warmed through.
Spoon a layer of blue cheese dressing onto each crostini. Top with the shredded chicken, crumbled blue cheese, and a dusting of parsley.