League of Legends (LoL) Question: I need some advice about support

Support is a role that depends on both ally and enemy team comps, so i would suggest taking that into consideration.

Hi, I am brazillian and I play support. If you want some starter support, you should try Thresh or Morgana. Thresh is a good starter because he is tank, so hook someone up to start. As Morgana you can flash to the enemy team's direction, then ult + zhonya's. I hope I helped you.

playing support you need to know
1. are you good at using skill shoots?
yes so play something like thresh / Blitz / nami / brand (remember if you miss all your skill shoot you are pretty unless)
no then play something like Annie /Janna / taric
2. did you have fun playing that champ?
if not just don't play him you will do a bad performance.
3. what you team needs?
did you team need CC,Tank,sustain?
are you playing vs CC,poke,all in etc

playing vs all in use poke
playing vs poke use sustain
playing vs sustain use all in

lot of text i know lool an my English are so bad yeah but i hope something here was useful for you.

p.s never play something you don't know to play even if you team ask you for it

Ehhhh.... If you are just getting into support then I would recommend either an AP carry support with a poke lane (Annie, Lux, etc.), a Tank / high engage like Nautilus, Leona, etc. or Blitz.

Generally you want to avoid powerful early game supports when you are allied with a poke or someody with weak early game- I.E. Ezreal.

Hi, I Started playing support because i have the same problem like you,I try many support champ,zylean to taric up to braum and bard but im having a hard time playing them cause some of them mainly for tanking and the others for heal, so i try to improvice and play Rakan. it is fun to play and quite interesting because of the mixed skill with heal,shield and being the initiator with his SS and knock up, using relic shield for first item and Solaris for first build. it convenient when your in team fight. i try building redemption at first but, my team always spreading around so they cant go near me nor where i activate the redemption because their too focus on their opponent so i try building Solaris at first and being the initiator, using RAKANs SS to gather them around in one place and use knock up. (oh faj, sorry cant help it when im talking about my main, and sorry for the grammar.I know it sucks,not native english speaker so), deal with it XD

It's probably a good idea to learn how to play a tank support since your team might need a tank sometime, though Lulu is almost always a good pick so it's great that you've picked her up.

Thresh is a good choice because he's just a really strong support, always has been, and he isn't a typical tank because he's ranged (and can poke) and does quite a bit of damage. He's not that hard to play though so don't let what other people say discourage you. But even if he was hard to play you'd learn him eventually if you practice enough, and he's worth learning imo.

A more classical tank would be Leona or Braum, and I recommend both of them since they're simple but strong (especially Braum) and I think they're good in this patch.

Being a tanky support has the advantage that you can easily engage a fight.
lets take Braum as an example, braum is decent in engage but has a powerfull defense and can also support his adc to the fullest. so if you manage to engage you can tank while you protect your carries which makes you win the fight.
Goodluck summoner.