I have just started to using Enscape with ArchiCAD and i am struggling to find light sources if anyone can point me in the right direction that would be great.
Welcome to our Forum! 
I would generally recommend some ArchiCAD tutorials on YouTube for example about lights or any other topic you like, and you can also check out our dedicated Enscape-ArchiCAD light knowledgebase article here for further infos that should help you:
https://enscape3d.com/community/blog/knowledgebase/archicad_lighting/
Good luck and if any other inquiries come up let me know!
Using an Archicad IES Light with desired IES files. This way you can visualize real lights distribution.