It's not a huge trend, I can honestly only find a handful of them on the internet, but Ghibli "What ifs" might be my favorite genre of fanart.
Basically, you just take a cool IP, any will do, and you reimagine it as if it were a film by Miyazaki.
Here you go:
Ghibli Star Wars by Lap Pun Cheung
Ghibli Dinotopia by DoonDraws
Ghibli Dragonball by ErisDraw3D
Ghibli Legend of Zelda by Matt Vince
And Ghibli Breath of the Wild by Miavern
-Jake