Hi,
There is a great private museum here in LA (although my father-in-law and I each found a mistake in the museum!) and it contains all kinds of memorabilia including 2 rooms dedicated to baseball cards (with a T206 Honus Wagner on display, as close as I'll ever get to one!), and there is a section of FB cards and a section on basketball cards.
Honestly it is an amazing place, and everyone should go.
here is the link:
http://www.sportsmuseumla.com/
Cheers,
Patrick