Whisk together the fish sauce, soy sauce, dark soy sauce, oyster sauce, chili-garlic paste, and optional pinch of sugar in a small bowl. Whisk in 1-2 tablespoons water for a thinner sauce, if desired. Set aside.
Heat the oil over high heat in a wok. Add the shallot, chilies, and garlic and stir fry for 30 seconds to 1 minute.
Add the ground chicken and stir fry for 3-4 minutes, breaking it up as you go, until it mostly cooks through and crisps up.
Stir in the reserved sauce and stir fry for 1-2 minutes.
Add the basil and stir fry until softened to your liking, 30 seconds to 1 minute.
Serve over hot rice with an optional crispy fried egg on top.
