Now we're getting to the good stuff: Molten Armor! This is where things start to get interesting, as you'll finally have a decent chance of surviving those Boss Battles. With Molten Armor, you'll be able to shrug off some serious damage, and your enemies will be like, "Wait, how are you still alive?!"
Of course, no melee armor progression would be complete without the pièce de résistance: Titan Armor! This is the crème de la crème of armor, the cream of the crop, the... you get the idea. With Titan Armor, you'll be nearly invincible, and your enemies will be like, "Why bother even trying?"
But, let's not forget about the underdog of melee armor: Shadow Armor. This is like the dark horse of armor sets, it may not be as flashy as some of the other options, but it gets the job done, and then some. With Shadow Armor, you'll be able to sneak up on your enemies and strike from the shadows, like a ninja!
Terraria: Armor Progression Guide – FSQRD