I am no expert by any means but here is MVHO:
Collections by colorway
TOT's
Batik's
Solids
Novelty
Children's Lines
Misc. Florals, Stripes, Geometrics
Holidays - Christmas, Easter, Valentines etc.
Wide Backs
I'm sure there are others but this is what I can think of at the moment. You could also link by color to each of the established categories.
Personally if I don't have enough fabrics for a quilt I prefer to look at specific categories and go from there. I will also add that for me trying to find a specific solid or tot on the internet is not easy as the color shown on a computer may not be the color I am seeking for my quilt but might possibly look like it will work when it actually won't. That is a real challenge as there are so many variations of reds, blues, greens, and so on. That's why collections work for me when ordering online as I know they will all work together. That said I do take a lot of chances and eventually will use them with fabrics in my stash that I would have never thought of if I was just looking for a particular fabric. I do have favorite manufacturers and designers and look for them first....
Hope this helps you some.