Well, the bins have always been mine, but it contains parts of sets from when I was little so I don't really know which all the sets anymore. But it indeed could get me started.
As for Rebrickable, I also mainly looked at it to see which mocs I potentially could build but haven't looked further than that, might indeed also be a viable option.
Would indeed give the most accurate data, but I'd have to find a few new bins then or any other sorting option to start that I'm afraid.
Are there any standard bins used by the communities for this or just plain old ikea bins :D
Thanks for your feedback!