I've used four, maybe five different oils over the years on my beard.  Some I blended with scents, some such as Jojoba were good enough to try alone.   About two weeks ago I found an unusually slick oil called Gibs Voodoo Prince, that is marketed as good for beards and for tatoos.  My hairdresser told me about this stuff, she gets it from a shop open only to folks with licenses.  I tried just a tiny bit on my finger and was surprised at how slick it was, so I bought it.

The smell reminds me of the perfumed talcs that the old fashioned barbers used, it's soft and sweet yet masculine.  After using it for almost two weeks now, I'm getting lots of comments on 'what happened to your beard? It's so fluffy'?!   The beard is much softer, fuller looking after using this oil.  It has olive, argan and sunflower oils.  It's scented with bergamot, sage and sandalwood, along with Copaiba basalm and Passionfruit oil.   I've never had an oil that worked like this stuff does.  Here's a link:

http://www.gibsgrooming.com

There's a couple of other scents available and they seem to be working on a beard balm as well.