For etudes: You have a lot of options here, so let me help you narrow it down:
1. The Bartok is not very technically rewarding, nor is it musically difficult.
2. Never heard the Concone etude before now but it is hardly above a novice work and is neither impressive nor difficult.
3. Czerny is Czerny. It's technically useful but not good for concerts nor auditions.
4. The Burgmuller has potential. It is easy to learn but difficult to play at a quick tempo; especially if you do not have much experience with octaves. I would recommend learning this etude if only to help you build wrist strength and speed for future composers like Liszt who really love their octaves.
Interestingly, Alkan has a very similar etude but somehow much more difficult: https://www.youtube.com/watch?v=q4sZMcWtpK4
5. Chopin 25-2 is a staple of the repertoire, not at all easy but quite learnable at your level. Probably the best choice here, since it's impressive if played well but also very technically rewarding. You could keep this work in your repertoire and potentially audition with it for future music programs or schools.
6. The Rachmaninov is very pretty and you could learn it if you want a more musical etude rather than a virtuosic one.
7. Gounod 's Periwinkle is little more than a novice piece and it's the easy way out if I'm being honest.
8. The Dohnanyi is middle-ground here, although it is by no means easy it is only an intermediate work that has no future at an audition or anything serious.
9. Haberbier is in the same situation as the Dohnanyi.
10. The Chatman is in a similar situation with the Bartok. It is interesting but not difficult enough to warrant serious attention.
11. The Brook is a good intermediate left-hand etude. I would still not pick it over the Chopin.
And as for Debussy, I would say that Passepeid is harder only because everything is so straightforward in the Arabesque (it's very overplayed anyways). Neither have much use in the future except casual enjoyment.
Here is a site I made that could be helpful in the future:https://sites.google.com/view/repertoireguide/home