Yeah you can work down the list. Can spray in some fuel into intake, if it fires up then there is no fuel.
Also turn the key and go listen near the tank in the back seat for the fuel pump wine. You can loosen the fuel rails to see if fuel sprays out if you hear the pump to make sure pressure is building.
Check out chris fixes videos, he has some good steps of what to check on cars not starting,
https://www.youtube.com/watch?v=PNhuDCVIydw