I've used & recommended olive oil & raw sugar as an exfoliant but as a massage/treatment oil, I'd stick to a good base oil such as almond or grapeseed oil, there would be more to choose from.
To these you can add a scented aroma oil to lighten or uplift, check which oils are compatable. When heated oil's will be easily absorbed into the skin.
I'm sure an aromatherapist geek could offer more suggestions[ just venturing into it myself]
Google -
Aromatherapy base oil/s & see what you can find that suits you & your clients.
There's alot you can put together with ingredients from the kitchen pantry, although you will have to purchase some extra items.
HtH
XX J XX