I purchased a trio of githyanki ages ago from...Ral Partha I believe it was. They are incredibly detailed 25mm figures but I dont know if you'll be able to find any since it was at about 9 years ago that I got them. If you can wait until the new d&d figs are released there will probably be a githzerai in the bunch that would substitute well (since chainmail was slated to have a gith revenant I figure they may have living gith in the mix, who knows). Wish I could be of more help.