Hi !!!
Alexandra is classic, royal, aristocratic, ageless, evergreen, elegant and refined.
Unfortunately it is also overused everywhere.
Actually I think that
Alexandra is better than
Alessandra or
Alejandra.
At the contrary I much prefer
Aleksandra,
Alexandrina and
Alexandria rather than it.
My favourite nickname for this name (and its forms) are:
1
Alix*
2
Drina*
3
Alya (formally)
4
Sandy (formally)
5
Sasha (formally)
Personal Name Lists
https://www.behindthename.com/pnl/125456