You can get canned Chipotle Peppers, right? I buzz a can of Chipotles in a quart of any Hot Sauce then add in some powdered garlic. The Chipotles add some smoke along with the heat. I prefer Tapitio over Franks when making more traditional Buffalo wings. The hot sauce in the DR is about equal to Texas Pete's: mostly vinegar and no flavor.
Another variation is Two Parts Hot Sauce to One Part Soy and One Part Worchestershire Sauce, again with some powdered garlic added.
A quart of sauce is enough for about eight pounds of wings. I go through over a gallon a year for wings. It won't go bad.
Another product to try is the Korean Kim Chi Base buzzed in a blender with other ingredients. Lots of heat and garlic, but it's thick like ketchup. I know you can get that..
Pro tip: dredge your wings in corn starch before frying. Adds just a little extra crispyness to them. Don't use flour because it will burn and add a bad flavor to the oil.
And I agree, butter or margarine is not a good add in, despite it being "authentic". Something sweet like a Gen Tsao Chicken marinate goes nice with the heat. How about Mango jam with some hot sauce? Experiment. There are all kinds of flavors to play with.