Anti freeze. You need to get that fixed. and fast. Check your coolant fluid levels.
Transmission fluid.
Rear main engine seal or front transmission seals
What color fluid?
You have transmission fluid lines that go to the radiator/front for cooling you must have a leak there
Work needs to be performed. Also depends where it is leaking from. If pan is leaking just drain transmission fluid and install new pan gasket and refill transmission with fluid. If front seal leaking then you will have to pull transmission and replace front seal.
Hub seal is leaking
Find where the fluid is coming out and repair/replace it.
Valve cover? Engine seal/ front or rear?
the seal is bad.
The front seal is out on your pump. Replace the seal
coolant, motor oil, power steering fluid, transmission fluid, brake fluid?