most of these guys are trolling you- Azir, Orianna, and Ahri are some of the most difficult champions to learn.
In terms of simple kits, some champions you may want to consider are:
After Annie, i'd say Lux is the prime beginner mage. She can play very safe with her super long range, and her ult can steal objectives pretty easily ((if you have vision). Like any champion, she takes practice to master, but she's pretty simple to pick up.
Malz is sleeper OP with the lockdown he brings. The hardest part of his kit is comboing his voidling at the right time, but his kit is fairly simple overall. He's great 1 v 1 and at ganking lanes.
Morgana is usually played as a support, but she's a pretty darn strong solo laner too. Her binding is a great ability, corrupted soil is great at clearing waves, her spellshield is an incredible utility skill, and her Ult is a great initiation ability (especially if you get a zhonyas).
These are pretty simple to play, but still pretty strong, champions i'd recommend trying. If you feel like playing more difficult ones, though, don't be afraid to give them a try! Everyone has to start somewhere :)