Support Gameplay
So what I have noticed that in many games when mid to late game comes supports are always behind on items compared to everyone else. I would say that a buff to support item gold generation would be a good solution to this. On how to complete this without making it so other lanes would take the support item the solution is decently simple: have the increased gold generation only occur when another teammate is close.
These changes could then mean that supports become more relevant due to being able to complete items faster.