Ohh.. Ok well I think savannas are great starter/intemidiate species they get around 3-4ft I have personally never seen a 5ft one soo i cant say anything about that. Argus I hear they arent that special soo I would go with something your going to like! Also look up white throats their pretty coolthey look something like savs but a little differnt
. Just take it slow on this because a sav,argus,white throat will need a 8ft cage plus feeding,cleaning,time,money!
I would buy some monitor books,read care sheets on differnt monitors,and just take your time monitors are a BIG responceability! Im still decideing if I should get a water monitor,or a black tree and then get some blue,green trees but im waiting at least another 3-5 months to make a decision.
Good luck!