Set your Instant Pot to Sauté, Add olive and chopped onions, sweat until translucent about 10 minutes.
Coat chicken breast with spice rub and add to Instant Pot on top of onions. Top with 1 cup of sauce.
Place lid on Instant Pot and set to high-pressure cook for 18 minutes.
Place Fried pickles on a baking sheet in oven for 10-15 minutes
Allow Instant Pot to cool and decompress before opening. Remove chicken and shred meat, in a shallow pan coat all meat with remaining sauce, you may need to open the additional bottle at this point.
Load Tortillas with pulled chicken, top with a crumbled slice of goat cheese, extra BBQ Sauce, Fried pickles and Onion Straws. Meal suggestions: serve with a side salad & ranch, refried beans or Texas caviar and chips.