What kind of music do you think fits Lizardmen theme? I think some otherworldly alien The Great Old One type of music is suitable for them, but I really don't know how to find any. Nox Arcana has made some good songs, but may I have tips for other sources? Please tell me about other sources and what kind of music suits Lizzie theme in your point of view.
How about the soundtrack to Avatar? Most of that country is jungle and woods and, in my opinion, had a nice matching musical score with it. Apactayptco, Jurrasic Park and Journey to the Center of the Earth had some good themed music. Going away from the movie soundtracks, Enya comes to mind.
I think it depends. For Skinks, Saurus and Kroxigor jungle native american music could work, but Slann demand more epic and more alien music. Where could I find some?
Search for "Greatest battle music of all times" on youtube and you will find many good tracks. Most of them are pretty epic and some are a bit alien.