Looking for a new champion

Hi.

So, I fairly recently won my last bronze game, and was promoted to silver 5 (hell yeah). However, I've been getting hit with the loss hammer a lot, and I really don't wanna go back to bronze. Not because I can't get out again, but just the demoralizing factor. Generally, in these silver games, I will play fill (I am decent at most everything but top, and in top I can just galio) to avoid the autofill pain for my teamates. However, in these games, my team will generally do meh, with just me and typically one other guy doing well, and the rest feeding their butts off (not on purpose, just getting outclassed). I don't play real carry champions, so most of the time all I can do is watch as we loose. Right now my ranked champion pool is:

I know that jhin can be a carry, but only if he has a good supp and is good. I'm only a passable ADC.

And right now i'm working on and in norms to take to ranked at some point.

My question is, is there some champion that you guys think would fit my playstyle, and would also be a hella carry person? I'm sensing great potential in kayn, especially assassin kayn, but I don't honestly know.

Thanks