Single syllables are a bit easier, or single syllable nicknames. Make sure they don't rhyme with family members or "No!".
Some people like regular names like Fred, Bob , Max, Jane etc.
Of course there are the "y's"
Molly
Millie
Sammy
Josie
Billy
Then there are the hunting theme names:
Sprig
Teal
Honker
Mallard Muncher
Then there is my favorite: "Gator Bait"