Drain and rinse the jackfruit and seitan, then pat dry with a towel and shred into thin, bite-sized pieces.
Heat the olive oil in a large skillet over medium-high heat until shimmering.
Add the shredded jackfruit and seitan to the skillet, sprinkling with smoked paprika, cumin, sea salt, and black pepper.
Sauté the mixture for 8 to 10 minutes, stirring occasionally, until the edges are golden and develop a crispy texture.
In a small bowl, mash the avocado with lime juice and water until the consistency is smooth and creamy.
Warm the corn tortillas in a separate dry pan or directly over a low gas flame until they are pliable.
Divide the savory jackfruit and seitan mixture evenly between the warm tortillas.
Garnish each taco with a dollop of avocado crema, diced red onion, and fresh cilantro before serving.