purple, qutlunch has a thread called "my first voyage with voyager" and she is in the early seasons if you want to check it out! And feel free to start any threads you want
Mosaic is a great book and some consider it sorta canon since it was written by Jeri Taylor, though some small things end up contradicting it. The sequel is Pathways which tells the life story of all the VOY crew. It's not a direct sequel though, you could read that first if you come across it second hand somewhere. Both are great read and used to be easily available on Ebay.
And WELCOME to the VOY forum!!