Best pre-Moon Lord armor?

So, my friends and I are getting ready to fight Moon Lord, but there's a big problem: We can't find a good armor set. I was hoping to get either the Stardust or Solar Flare armor, but now I realize that it needs Luminite which only drops from Moon Lord. What's the best armor before beating Moon Lord?

The last major boss before the Moon Lord is Plantera, whose defeat causes Chlorophyte to begin to spawn, which (eventually) gives you access to the following:

• Chlorophyte (Melee, Ranged, and Spell options)
• Shroomite (Chlorophyte + Glowing Mushrooms, Ranged damage)
• Spectre (Chlorophyte + Ectoplasm, Magic Damage)
• Turtle Armor (Chlorophyte + Turtle Shells, Defensive Melee)
• Beetle Armor (Turtle Armor + Beetle Husks, Defensive Melee, also requires golem to be defeated)
• Spooky Armor (Spooky Wood from the Pumpkin Moon, Summoner Armor) If you currently have these armors, there's nothing left to do but buckle down and face the Moon Lord as-is!