Can also place a small swap partition on the shared drive (probably won't need much swap with 16+ gb of ram. I plan to have one SSD for Win10 (system and apps), one SSD for Ubuntu (system and apps), and one shared HDD or SSD (files and folders that can be read and write for both).
I'm considering a new dual boot system with Win10 and a Linux distro, probably Ubuntu because I'm a Linux noob.