Tvtropes is easily good gor hours and hours of reading.
Also good: google “does your smile still work?”
I go to Know Your Meme just to keep up with what the cool kids are doing, but if you flip through the memes tab, you will find some funny shit in there.
There was this hilarious series of videos where this dude would slap the shit out of his friends… it sounds dumb, but I had to watch all of the clips.
It’s a little geeky, but I enjoy the Slow Mo Guys.
it’s good to look at all the stuff that other people have made but if your friend really wants to take his mind off his troubles, why not try making and sharing his own meme?