Welcome to the Diesel Stop.
Anyway if it's leaking at the FRONT it can't be the REAR main seal.
It could be the front main seal, valve covers, IP gear cover. The key to finding any oil leaks is starting with a clean engine. After its clean then run it for a few minutes and the source of the leak should be obvious.
After you have cleaned up the engine. When you find oil pooling, or running along a ridge, look above there to see if it might be coming from higher up. I have seen many "head gasket leaks" turn out to be valve covers, or if it was coolant, a seeping hose somewhere.