lol this wasn't hard at all, you just need to search "webcomics"
I'm pretty sure I've missed some though, I almost missed popular ones like "Oh no, he's retarded" and "All life is precious" because they didn't appear in the webcomics search, so if you find anything, post it below.
Before you add something to the list, I didn't include memes which had creative variants, or memes which didn't have many political/controversey variants, even though they appear to fit the format. For example, That's not honey pooh, Wheeze Comic, Baton Roue, Coffee, You're My Only Friend, My Son Did Not Enjoy This Book, and Scroll of Truth, weren't put on the list, as they have more variants with clever twists than opinions. You can disagree with me and list memes that made me laugh anyway, to which I will put your icon in one of the exploitables.
Also, I put this in order of when the comics rose in popularity, not by when the original comics were created (ie. the year KYM says the first variant became popular, not the year listed in the page's info column)
2012
Modern Society (resurged in 2017)
2015
Stuck in the Elevator (arguably 2017)
Will We Find Intelligent Life
Ew I Stepped In something i don't like
Oh No It's Retarded
Does He Bite
2016
Civilized Discussion
Missed The Point
Talk To Me Like You're An Idiot
Thanks To The Miracle Of The World Wide Web
2017
Get Better Material
Hey man you see that guy over there
All Life Is Precious
Self Aware Robot
Your Mother And I Will Always Love You
As A Father