WotC has been sending out previews of Fizban's Treasury of Dragons, due out next month, to folks on Twitter. Amongst those are art pieces and other items.
By Challenge Rating the dragons in the book are:
There's also an alphabetical list of all 20 dragon types in the book:
By Challenge Rating the dragons in the book are:
- Ancient crystal (19)
- Ancient topaz (20)
- Ancient emerald (21)
- Ancient moonstone (21)
- Ancient sapphire (22)
- Elder brain dragon (22)
- Ancient amethyst (23)
- Ancient dragon turtle (24)
- Gem greatwyrm (26)
- Chromatic greatwyrm (27)
- Metallic greatwyrm (28)
- Apects of Bahamut and Tiamat (30)
There's also an alphabetical list of all 20 dragon types in the book:
- Amethyst
- Black
- Blue
- Brass
- Bronze
- Copper
- Crystal
- Deep
- Dragon turtle
- Emerald
- Faerie
- Gold
- Green
- Moonstone
- Red
- Sapphire
- Shadow
- Silver
- Topaz
- White