Some of Edward Grist's last books, with Ron's marbles, Popular American Marbles and American Machine Made Marbles are good books for swirls. JoeMarbles site, Steph's Study Hall and searches here can also be informative.
To me, it looks like you have a lot of Alleys, perhaps some Champion, Ravenswood, etc., and some newer ones too. If you start sorting by color and then try to group marbles with the same-color and similar-patterns you'll be heading in the right direction. Then you could try bringing the groups of marbles with similar patterns and different colors together. It sounds like all kinds of fun to me!