Funtime Foxy gender

Or... You can make him non binary/femboy. Use a feminine base and give him masculine features for the details. You can use a masculine reference for the muscles after you complete the feminine base and erase then fix what is unnecessary. That's what I did for him in this drawing!

I figured that this would make it easier for you since you said you draw girls better than guys, but you usually stick to Funtine Foxy being a male. This way, you're kind of doing both, but you lean into one more than the other.