Hi
I am just starting out In gaming Development with two other friends.i don’t have have any experience so I am doing a lot of ebook reading on blender ,c++ and unreal engine.i work full time in engineering so this is a hobby for me and my friends where not looking to make money or even a popular game we just want to make a game we want to play.im looking for good graphics images I can edit and play around with on blender and any advice from other members on this forum.
Welcome! 
Do you mean textures or 3d models? You can get lots of free stuff here:
:///
For the engine take a look at those sites:
https://docs.unrealengine/latest/INT/
https://wiki.unrealengine/Main_Page
https://wiki.unrealengine/Videos
Thanks for the info I’m looking for both textures and models i find it easier working off a template and modifying it.