Hi! I believe the collectable miniatures is a great idea and I have quite a few from WotC D&D miniature line (2003-2011) and Wizkids' "Icons of the Realms" series (2014-currently).

In my 28mm collection of prepainted miniatures, I have a Minsc with Boo on his shoulder, I have a miniature which really looks like Laezel (I suspect Laezel was originally based on the original female githyanki warrior/mindslicer artwork developed for miniatures and tabletop D&D between 2009 - 2018). I recently bought a wizard whos is really like Gale minus his cool beard, and I have a drow sergeant who really works as a proxy for Minthara.

I'm currently looking for proxies (maybe after some re-painting) for Shadowheart, Jaheira and Wyll.

Finding miniatures representing the generic baddies is supereasy. I can recommend miniaturesgallery.com, which covers the aforementioned series as well as Pathfinder minis. Let me know if I can offer more details.