Dreaming of a
Natrix tessellata,
Zamenis situlus or
Z. longissimus couple.
More realistically, a
Thamnophis radix or
T. sauritus sauritus couple. There's not much to choose from, to be honest. I don't have the time or the resources to search for them abroad. A sauritus should be easy to find. Ironically, all you have to do is contact anybody who is selling a sirtalis. I contacted a few last year and everybody who was selling a sirtalis, had in fact a sauritus.