>>96247742
Yeah I don't know what it really does for you as a monk. Lizardfolk isn't terrible for monk (their ability score spread is nice for most martials; int penalty is a dump stat for you), but there's not a lot of synergy with their heritages or ancestry feats.

I feel like a Bakuwa lizardfolk rogue with Ruffian racket might do what you're looking for. Ruffian grants medium armor proficiency, which enables the Bakuwa natural armor (which is medium armor for some reason???). It also allows you to do sneak attack damage with your d8 fangs, while other rackets would limit you to your d6 claws. If you have room, you could multiclass into fighter at some point (you'll qualify for it because Rufffian has strength as their key ability score) to grab Snagging Strike and Combat Grab, both of which take advantage of your free hands while you're biting people with your fangs, which sounds kind of like the vibe you want with the character. It's not, like, going to blow anyone's mind with how powerful the build is but there's some stuff you could build around there. If you wanted you could just go fighter instead and ditch the Bakuwa natural armor for actual plate armor, but that's way less cool.