My 93 Civic Si cranks but won't start. I haven't had any problems with it starting and it just randomly stopped working yesterday. Just after I drove it 3 hours earlier.

I turn the key and hear the fuel pump start up
Turn the key again and the engine cranks, but doesn't turn over.
After doing this you can smell gas near the fuel rail/injectors

First I Charged the Battery - Didn't turn over

Then I Re-Solder the Main Relay - fuel pump seems to function normally

So I tested the spark plugs and found out I'm getting no spark whatsoever
I then replaced the Distributor Coil -Still no spark

Please let me know what else I could try.

Sounds like the ignition control module in the distributor. It's a common failure on Hondas and Toyotas.

If the Check Engine Light comes on for 2 seconds and then goes out, when the ignition switch is turned to ON (Position II), then replace the Ignition Control Module (ICM) inside the distributor. Apply silicone heat transfer compound to the back of the new ICM, otherwise it will not last long.