User blog comment:Skeith9/Heroic Spirits Speculation/@comment-175.143.152.179-20140727095740/@comment-24754018-20140727114557

I find randomly going through legends on wikipedia to be a good source of inspiration. You might have to do further research to get stuff on the more obscure ones, but it's a nice start.

I think I had a list somewhere on my computer of undeveloped ones I was going to do but never got to doing properly, if I find it I could post them for someone else to pick up if you'd like.