Carbquik is a low carb high fiber baking mix made from wheat. It can be used in many recipes that require a baking mix. I have tried simple biscuits and an Impossible crust-less cheesecake recipe and they both were good. The link for Carbquik is https://www.carbsmart.com/carbquik.html
Bobs Red Mill Low Carb baking mix is another option. It is high fiber mix made with oat bran, wheat bran, soy flour and whole grain flax-seed meal. I have tried the pancake recipe and they did taste good. The muffins had too much of a grainy taste. The link for Bobs Red Mill is https://www.bobsredmill.com/
For better results I combine these two mixes for muffins cookies etc.