I'm not really a strict recipe person. I have like general things I'll do but I mix it up and just kinda use what I have laying around. The Chinese chilli sauce i mentioned I'm just realizing is Thai not Chinese. Since I checked the back lol. It's Ox Brand Ground Red Chili Sauce. It's like ground up chilis and still has the seeds. I just let it bake into a crust on the chicken since all the water evaporates. If you were doing like a chicken thigh for example I'd get the sauce under the skin before baking it. Then on the skin just add a tad more. Like a glaze. The sweet and sour sauce depends if your big on sweetness or not. It's more like an on the side at the end thing. So like I'll do that stuff but then I'm also just kinda tossing whatever spices I have around on there too.

Another thing you can do that is really good is go to an asian foods market and see if you can find fresh red chilis. They will sell big bags of them. Then you can freeze those and cut them up as needed. Then toss them into some hot oil (like a neutral oil) to make a nice hot chili oil. Which can be used on lots of stuff. Try to find things that look like this:

If you want the Thai Red Curry powder I mentioned you can try this. It's very good.

Basically any of these spices/sauces will make chicken taste great. But be aware I'm a big fan of spicy so some of this stuff is too spicy for a lot of people. I'm not really able to gauge what is super spicy and what isn't. I will eat something and not even think its spicy then someone else is acting like they're gonna die. And even to me the fresh chinese red chilis are noticably spicy. The others not so much.

Edit to say I looked it up and I think the Chilis I get are called Thai Bird's Eye Chilis.