Recommended Gmod stuff

So, just reinstalled gmod for the first time in like a year, was wondering if anyone could direct me to a list of generally useful/awesome stuff that you should have installed and what the best source to download it is? I actually assumed there would be one stickied here but I guess not.

I remember a bunch of stuff like wiremod and there was this huge pack full of items and building materials and etc that I can’t remember the name of, and I’m sure there’s tons more.

I suggest wiremod and PHX3

‘Wire mod’.