I have trouble getting scents to last on me also. Black Aoud works well though and I'll give you a short list of some others. Tobacco Vanille is nice but poor longevity for me.
Sliver Aoud by Montale - This sucker has amazing logevity and sillage.
Red Vetyver by Montale - another amazing one by Montale
New Haarlem by Bond #9 - This would make a great signature scent
Eau Noire by Dior
Fougere Bengale by Parfume d'Empire
Black Tourmaline by Oliver Durbano