My favorite book on indoor houseplants (and it served to get me hooked years ago) is Success with House Plants ~ Readers Digest.
https://www.thriftbooks.com/w/...
It was a book that introduced me to a variety of houseplants and included plant care.
I'm too far from the Spring area to know the nurseries but I'll bet someone here can help.
I am impressed with his interest and proud to hear that you are encouraging his hobby. Welcome to NGA as well as to Texas. Perhaps you can slip away and visit soon!