Adorable
Angel
Amore (love in Italian)
Babe
Baby
Babycakes
Bae
Boo
Cutie
Cutiepie
Darling
Good looking
Gumdrops
Handsome
Hero
Hun/Hon
Honey
Honeybunch
Hot stuff
Hunk
Jellybean
Knight in shining armor
Love
Lovemuffin
Loverboy
Mi amore (Spanish for 'my love')
Mon amour (French for 'my love')
My knight
My love
My one and only
My sunshine
My superman
One and only
Pookie bear
Pumpkin
Romeo
Sexy
Soul mate
Sunshine
Superman
Sweetheart
Sweetie
Sweetness
Sweetums
Teddy bear
Teddy
The love of my life
Tiger
Tiggy
Tough guy
You can come up with more nicknames using your man's name, i.e if your boyfriend's name is Adam you could call him Addy or something of the sorts. I have a couple nicknames for my boyfriend that uses his name. Give them a try and see what he likes :) some guys are picky with what you call 'em. There are obviously many other nicknames but these are just the ones I could think of.