Some ideas for hypothetical perfume blends inspired by the iconic D&D dragons. Unfortunately, I don't have as much familiarity with perfumery as I'd like, so I have no idea if any of these would actually smell good.
Metallics:
Great Gold Wyrm: frankincense, burning beeswax, amber, and saffron.
Great Brass Wyrm: the essence of desert hospitality - coffee, cardamom, honey, and rosewater - over hot sand.
Great Silver Wyrm: rainwater, snow, crushed leaves, and wet tea rose.
Great Bronze Wyrm: salt spray, tropical flowers, sun-warmed wood planking, and a touch of ozone.
Great Copper Wyrm: a playful blend of lemon, mandarin, and berry notes with champagne and vanilla, and darker undertones of lime and grapefruit.
Chromatics:
Great Red Wyrm: dragon's blood, cassia, sandalwood, smoke and ash.
Great Blue Wyrm: hot sand, ozone, regal myrrh, and a tribute of spices from a desert market.
Great White Wyrm: snow, white flowers, and a thin biting edge of mint and pennyroyal.
Great Green Wyrm: leaf mold, crushed grass and forest flowers, cedar, eucalyptus, and musk, with the faintest touch of chlorine.
Great Black Wyrm: black musk, lotus flower, and stagnant water.
Etc.
Fairy Dragon: apples and berries, woodland flowers, hard cider and wintergreen candy.
Battle Dragon: spiced mead, steel, leather, and roaring fires.
Radiant Dragon: an exalted blend of glowing golden notes: amber, olibdanum, and Oriental lily.