I'm reading Latin American Indigenous Violence and Ritual Warfare right now. It's edited by Ruben Mendoza and Richard Chacon. I've only got a couple chapters left, but so far the best chapter has been on how difficult it is to get any good information about actual sacrificial practices of the groups in the central Mexico valley. There's another good chapter on Mayan warfare and how study of the subject is limited by a lack of knowledge of the political conditions in southern Mexico/Central America.

A lot of the book is dedicated to South American groups and there's a chapter on ritual fighting in Take The Square events at the end of June. The authors did a good job of tying the ritual back to pre-Columbian rituals. But most of the South American chapters are about tribal raiding which I don't find super interesting.

Overall, I'd say maybe check it out if its handy if you're really interested in this stuff, otherwise, maybe just read chapters on specific groups you're interested in.