I have had and bred just about every lizard you can think of. Bearded dragons are generally very tame and can be handled easily, good starter lizard. Chameleons are cool but involve a lot of work to keep alive. You will need a vertical cage with mesh sides because they need plenty of ventilation. They also need a drip water system, you can't just stick a water dish in there. They need a good misting at least 3 times a day and lots of sunlight which you can simulate through a heat light that has a vitamin coating. Of course they need higher temps as well. If you do go chameleon don't go veiled, they are cheaper but tend to be aggressive and don't change colour a whole lot. Go Panther for sure.
Gecko's are easy to look after but most are night time creatures and will stay hidden all the time until feeding time. Go Giant Day Gecko if you are going gecko. Iguana's used to be the rage but they get pretty damn big and they tend to carry an attitude. If you are going iguana then adopt one as there are so many that have been bought and abandoned. You could always go big and go White Throat Monitor! No, don't do that,lol. If you have an questions about any kind of snake, lizard, amphibian, tortoise, turtle, tarantula, or salt water tank animal feel free to pm me.