alright i done this before On my MLPGenderSwap2 group. But now i'm about to repost it now.

Pinkie Pie/Bubble Berry
Rarity/Elusive
Twilight Sparkle/Dusk Shine
Fluttershy/Butterscotch
Rainbow Dash/ Rainbow Blitz
Applejack/Applejuice/Male Applejack/ Female Applejuice

Applebloom/Applebuck/Little Mac/lil' Macaroni
Scootaloo/Scooteroll
Sweetie belle/Sweepy belle

Discord/Eris
Princess Celestia/Prince Solaris
Princess Luna/Prince Artemis
Lord Godzilla/ Princess Omegazilla
Nightmare Moon/Nightterror Nebula
Gilda/Guilder/Iron Claw(ME)
Macintosh/Macareina/Bluehood(ME)/TBA (I need to make it)
Bon Bon/ Bun Bun
Lyra/Guyra( Veggie)
Spike/Barbara/Spines( Fanfic OACAA)
Trixie/Trixter
Gummy/Gumcher (ME)
Winona/William
Ponyzilla/Peangilla
Braeburn/Breebunk
Opalescence/Alexanderite
Owlowicious/Owlastronomy (ME)
Angel/Angela( ME and conner cogwork earlier)
Philomena/Ignatius
Granny Smith/Grampy Smith
Carrot Cake/Cream Cake
Cup Cake/Coffee Cake
Pound Cake/Angel Cake
Pumpkin Cake/Cheese Cake
Mr. Breezy/Mrs. Gusty
Snips/Spice
Snails/Sugar
Diamond Tiara/Emerald Titan
Silver Spoon/ Platinum Fork
Spitfire/Flamethrower
Soarin/ Flyin or Glide
Cheerilee/Cherryloo (aka Cheese Name by ME)
Octavia/Octavio
Prince Blueblood/Princess Bluebelle
Derpy Hooves/Dopey Hoof
Ditzy doo/Clutzy doo
Vinyl Scratch/Record Scrape
Princess Platinum/Prince Titanium
Chancellor Puddinghead/Lord Creampuff
Commander Hurricane/General Tornado
Smart cookie/ Brownie Point
Private Pansy/ Private Wuss
Clover the Clever/ Waldo the Wise
Flim/Shim
Flam/Sham
King Sombra/Queen Ambrosia
Shining Armor/Shining shield
Princess Cadence/Prince Bolaris
Babs Seed/ Propel Apples ( Me)/Buster Seed (Other People)
Garble/Garini

Special Crossover genderswaps:
Spider-Man/Spider-Mare
Sly Cooper/ Slew Cooner
Murray/ Murphy
Bentley/Benetton
Panda King/Polar Bear Queen
Angry Video Game Nerd/ The Angry Video Game Nerdette
Nostalgia Critic/ Nostalgic Female or Chick
Nostalgia Chick/ Nostalgic Critic or reviewer
Welshy/Walterscotch
Shredder/Shreds
Krang/Grank
Leonardo/
Rapheal/
Michelangelo/
Donatello/
Venom/

More coming soon

OC Genderswap:

Golden Heart/Glowing Heart
Boris/Boreas
Dum-Dum/Smart-Smart
Boxco/Boxris
Tuffy/Tougher
Grizzly Queen/ Brown King
Trimurti/ Trivalent
Pinkamena/ Bubblini (Greenrob)
More coming soon you can insert your oc here please comment me and i will add Your oc.