Most mods for DQ7R can be found here -- https://www.nexusmods.com/dragonquest7reimagined
Instructions courtesy of StevensND
Right click DQ7R in the game library -> "Open Mods Directory"
Create a new folder named after the mod you want to install (i.e. "Dynamic Camera" for the Dynamic Camera mod)
Create the following folders in order:
Inside your new folder, create romfs folder
Inside romfs, create DOLL folder
Inside DOLL folder, create Content folder
Inside Content folder, create Paks folder
Finally, paste the downloaded files into the "Paks" folder. It should look like the image below:
Navigate to sd:atmosphere/contents/
Create a folder named "0100A9D01C446000" if it isn't there already
Create the following folders in order:
Inside your new folder, create romfs folder
Inside romfs, create DOLL folder
Inside DOLL folder, create Content folder
Inside Content folder, create Paks folder
Inside Paks folder, create ~mods folder
Paste the downloaded files into the "~mods" folder. It should look like the image below: