What specifically are you looking for? When it comes to minis for this kind of genre I don't think you're going to find a particular line or one manufacturer that'll fulfill all your needs. You'll find one mini perfect for PC A over here, and one mini that maybe with the right paint job would work for PC B over here, and then find a Horrorclix over here for PC C, and so on.
As I have done that dance and have minis for all my PCs now, I could offer some suggestions once I knew what you were looking for. The only constant suggestion I make to people for minis is to look at Reaper's Chronoscope line. It's pretty hodge-podge but that's the beauty of it. They have a pretty good almost-Dresden and their Chupacabra'd make a good RCV and so on.