You have not stated where you are located.....
If you are in NSW..... will legally hold any Colubrid, Elapid, File Snake or Blind Snake (preferably non-arboreal due to it being low in height) with a snake length up to 3 metres.
It is *just* undersize for a Class E Python (Which only rules out Olive & Scrub Pythons) - but any Class A, B, C or D python (again preferably non-arboreal) up to 3 metres in length is legal in that enclosure.
All of the above applies once the snake is over 18 months of age and on the proviso that it is the sole occupant of the enclosure.
If it were me I would consider a Black-Headed Python for that enclosure....only because they are non-arboreal and this enclosure would provide a large floor area for it.
I have little experience with lizards and applying the CoPs to them so will leave the lizard suggestions to those with more knowledge with them.