Champion Select

So, we can make builds for specific champions to make it easier to sift through items in the shop. But, hear me out. What about being able to click a drop down tab in lobby based on the role you got for your team to only have select champions show up to make it easier to pick who you want to play? It's so stressful sometimes trying to decide which champion I want to play when i have 100+ to choose from. Why not make it easier to filter them? Any one else have thoughts on this?