I created a poster with the most popular bodyweight exercises to train legs
Link to 3348x4833 px image:
https://i.ibb.co/rHYFNqN/simg-train-your-legs.png
I missed a few interesting variations like the Dragon Squat and the Cossack Squat but this should give a few good ideas to progressively workout your legs at home (or anywhere). It's mostly bodyweight but you can add weight in several of these, if you wish.
I am linking these exercises with the muscle groups. Please understand that to create such a simple graphic like this I had to cheat a little and this mapping to muscles is not perfect.