Welcome to the Basenotes, sd1207. Hope you will find it a friendly and cosy place to stay, and please hide away the credit card, every one of us is an enabler!
The answer to your question is not simple: half of the Basenotes Directory would work, I am afraid. What fragrances do you like in general? What resulted in positive comments from your loved ones? From strangers? What you'd rather avoid in a scent?
Having said this, my advice is always the same: back to the classics! Chanel, Guerlain, Patou, Molinard, the list is endless.