Well i'm no expert Sugar, i've tried a few and grown fond of Amla (which is very good) and Vatika. Don't think there's much harm in oils try all of them maybe a week or so at time and you be your judge . Good Luck
quoted from the thread Amla (moisture and strength), Shikakai (cleanse and strength), Neem (dandruff and deep cleansing), Brahmi (growth and stimulation), Aritha (oily scalp, build up), Maka (bhringeraj) (deep moisture).