I enjoy getting autofilled.

play tahm kench holy shit is it fun saying this fucking garbage b5 shit adc didnt go 0-163416 cuz of ME

I recommend ANY support with capability's of saving or messing with others. be it your team or the opponents.

I go the complete opposite of the suggestions so far and play Brand/Zyra/Vel'koz. Doesn't matter if your ADC is an idiot running into a Lucian while he's channeling ult, most ADC's have enough focus to say, "hey, my support just chunked that enemy ADC to 100hp, I can get a kill if I walk forward and help them." I mean, you can't stop them from pushing up solo in long lanes without vision, but you can at least make it that trying to kill the ADC means whoever comes forward is going to lose a good chunk of their health bar from doing it.