Who do you consider a Great Author of the last 50 years or so (first well-known work after 1970)? I'd like to get a feel for who's who in modern literature. Any language/culture. Fiction only.

I upvoted because Vonnegut is the GOAT and most definitely wrote some bangers after 1970, but his first well known books were published in the 1960s. So, he is pretty close to OPs cutoff for modern writers, I guess.