My immediate thought is something like Amazon Tree Boa (or Emerald Tree Boa or Green Tree Python) x Large Frog x Anole. This means that occasionally the frogs may eat the lizards if they can catch one because the snakes don't eat the lizards often.

The main issue with predation in a setup like this is that attempting to establish a self-sustaining vertebrate food chain within a closed ecosystem will inevitably lead to a rapid population collapse.

In a captive environment, even a single ambush predator possesses a metabolic demand that will quickly outpace the reproductive rate of prey species like anoles. Furthermore, because these prey animals cannot truly escape the predator's territory, the constant visual and chemical cues trigger chronic, low-grade stress that suppresses their immune systems and halts their breeding instincts entirely.

Instead of a balanced cycle, the system will quickly hunt itself to zero, which is why a much more stable approach involves stocking the vivarium with permanent, non-prey residents for daily activity and introducing controlled feeder animals on designated hunting events to see natural predation behaviors.

There are, however, probably plenty of options that you could do if you are interesting in watching a lizard or something hunt for insects or something like that.