Filebot is a perfect tool which can help organizing your Movies or TV Series, also it can automatically download subtitles or artwork:
Installation on Windows and Mac is pretty straightforward, so I’ll not elaborate on that, plenty of information about that might be found under following link:
Installation on OSMC
1. Prerequisites:
sudo apt-get update
sudo apt-get install binutils xz-utils libjna-java mediainfo
2. Download and install the package
wget https://downloads.sourceforge.net/project/filebot/filebot/FileBot_4.7.8/filebot_4.7.8_armhf.deb
sudo dpkg filebot_4.7.8_armhf.deb