Just to get it out of the way here is the harem

Amy Rose
Rusty Rose
Thorn Rose
Black Rose
Rouge the bat
Rebel Rouge
Prim Rouge
Batten Rouge
Sage ( Adult )
Sticks the Bagger
Blaze the Cat
Vanilla Rabbit
Honey the Cat
Sally Acorn
Sonia the Hedgehog
Queen Aleena
Zeena
Metal Sonica
Surge
Breezie the hedgebot
Mina the Moongose
Nicole the Lynx
Tangle the Lemur
Whisper the Wolf

Anyway that's the harem, now the harem won't be in the story that much but if you have anyone in mind for the harem let me know and I'll add them in and some will be reveal along the way the way until then I'll see you later