There are plenty of decent options - a cobra, a gecko, a python, a praying mantis, the Mediterranean chameleon or the Central Asian tortoise could all work well. But I'm ready to watch in wonder as we get something completely leftfield that was on nobody's radar.
You may have sold wisent to me. I still think it is takin though...If there's a wisent I'm gonna really really enjoy it, I think we still lack European animals and it has a great history with being the first extinct in the wild animals repopulated to least concern thanks to zoos. I would largely prefer it to a takin, personally.