I recommend you to play Sona because you don't even need to have skill at the game to play with her, she is TOO easy. I am pretty sure you will like her
.
i would of say Yummi because she is so great in keeping ally champions alive and have a good damage bonus that you add to your adc and then you ccan dominate early game
with her Q pokes
Alistar is the best choice! 
The best support is lux because she can do a lot of damage
Lux and veigar, theyre good because theyre ranged, do a lot of damage and are perfect for new users.
i mean, there are people who think theyre hard, but i main lux and i think both of them are easy! (Unnamedceell EUNE support main, add me :D)
I usually play Sona, Veigar and Lux as supports.
Blitzcrank is probably the easiest champion that can make really important plays. He can cc one champion while his teammates do damage for 3 seconds with his Q > E > R combo.
i like orianna
in 3 steps
Choose the game that interests you and play itfor free.
Every game has some quests for which you will receive Soul Gems.
You can exchange your Soul Gems for Steam Wallet top-ups, game keys, CS:GO Skins and other rewards.
You know that on Gamehag you can get real rewards for free, right? Join us, complete walkthrough and get your chest!
I'm not good at this game and have a low rank so I only play support, spent sometimes with thresh and blitzcrank before and now I want to play a new champ, what is your advice?