to what Bogs said i feel the only real “dodgy” (not bad) lizard choice here imo would be crocodile monitor only insomuch as it’s big and potentially, real dangerous but ultimately it depends on the keeper - not everybody is going to be operating on the same level of others and that’s totally ok - i know i reference arachnids a lot but i legit know some keepers who have been in arachnid keeping for multiple decades who only and exclusively work with “beginner tier” species like the Brachypelma genus just the same as there are other arachnid keepers, such as myself, who exclusively worked with “expert tier” species like the Hottentotta genus - that’s ultimately what makes the hobby so cool is that everyone has a place in this respect

so i think the answer would vary and is like Bogs said “the best choice is what’s best for you individually” - for most people, lizards like beardies would be the best for other people who are more involved maybe it is iguana or water monitor