Pokemon X recommendations.?

I'm trying to build a good party in Pokemon X(not compulsory for online battles).But I have only 3 pokemons which I want to in my party and even those pokemons have do not have a good move set.I need some help with those too.The Pokemons are:

Delphox

-Flamethrowe

-Flame Charge

-Fire Blast

-Psychic

I want to replace Flame Charge and Fire Blast with some other moves.Which moves which I give Delphox instead of the mentioned moves?

Blastoise

-Surf

-Ice Beam

-Earthquake

-Bite

I want to replace Bite with Crunch.But I dont know how to.Is there a Crunch tm or something?

Lucario

-Power-up Punch

-Aura Sphere

-Dragon Pulse

-Earthquake

I want to replace Power-up Punch with some Steel type move.Pls recommend some good steel type move for Lucario and how do I get that move?

PS:I would prefer to have a good dragon type Pokemon in my team.