A good nickname for Lauren is:
~Ren
~LuLu
~LeLe
~LaLa
~Rein
~LarLar
I hope this answered your question! ^^(some of the names sound weird but its true!)
Izzy is usually a nickname for Isabel, a good nickname for Lauren is Lau (pronounced Law) but a nickname is there for a reason, it doesn't have to match the birth name, just has to suit the person.
Lauri
my best friend is called lauren and we all call her Lozza
Some nicknames for Lauren are Lorn, Lorrie, Laurie, Loreand many variations unique to individual Laurens.
Lauren is the best person eva!
If you like 'Nan' as a nickname, then yes, it is a good nickname.
A good nickname for what? Sounds a bit pansy
It does not require a nickname.
Keke Palmer real name is Lauren Keyana Palmer
Jaz might be a good nickname
A good nickname for Sheila could be Shei or Shelly.
A good nickname for Zekrom would be "Black Dragon".