Chomp can't learn dragon dance, even not with breeding.
Many Pokemon can learn dragon claw, Any dragon Pokemon is able to leard dragon claw, if you go into your box, you can look at the summery of your Pokemon and it will tell you what type it is on the...
Dratini, Dragonair, Dragonite, Lugia, Gible, Gabite, and Garchomp. Using breeding techniques, charmander, rhyhorn, aron, swablu, and bagon.
Slalamence
any dragon can but you have to have an strong freindship