since u may run into problems uploading your vertical SOOC pics on 4chan, I have a solution for you that doesn't require much effort
1. download jhead.exe from
https://www.sentex.ca/~mwandel/jhead/2. download jpegtran.exe from
https://www.jpegclub.org/jpegtran/3. copy and paste these executables into the folder of images with vertically oriented pics you want to upload to 4chan
4. in that same folder, click on the directory address bar and type in "cmd"
5. in the command line, type "jhead -autorot *.jpg"
6. ???
7. profit