Let's see, coconut, argan, walnut, castor, jojoba, grapeseed, EVO, & tea tree. I use my oils for sealing and scalp massages.
I did try other oils but after trial and error periods discovered which percentages worked for me (what sealed but didn't leave my collars, neck, face, pillows, a greasy mess!).
I have had some wheat germ oil in certain condish I purchased but have not tried it outright so I don't really feel like I know whether my hair benfitted from it.
Out of all of the oils I use, I agree for me, the heavier oils work best for sealing.