http://gnosis.org/naghamm/nhlcodex.html

Scroll down and you will find a bunch. Also I dont consider the text Gnostic but the website I found them does just for the record lol. You can also look up Nag Hammadi on youtube and give a listen. I do recommend though you read the bibles Gospels before these ones (you dont have to) but it will let you put them in context a little better. Hope that helps!!