How to make support more enjoyable
Just flat out remove sight stone. Everyone's trinket carries 2 wards and upgrades to 3 at lv9 Red and blue trinket can be slightly adjusted to accommodate.
It's been suggested time and time again to make different variations of sight stone so it's more appealing out side of coming to grips that your spending 800g and an item slot because no one else likes to ward. But riot won't do it for some reason. (Probably abusable on Lee anyways)
Anyways, relieving the sightstone pressure from supports gives them more gold to enjoy their role better and makes warding a real team effort in a team game.
If support end up to strong due to the extra gold, gold income items can be adjusted.

got a bad scalling on her Q. ADDITIONAL DAMAGE PER SECOND CHARGING: 15 / 20 / 25 / 30 / 35 (+ 10% AP) Like why is this even exist?
Now, she also got 3 nerfs in a row in terms of utility. (I guess u are nerfing weakness, right?)
were designed to increase poke and spell damage (Damage again I guess?) Some mages take advantage of this and take the support role (even riot talks about Brand support)
does not get scaling on his E slow. Got 0.8 damage scaling on his Q instead.