They shared 1 episode together of yummy-ness where they were actually dating. Since then there have been small moments of Noah's OOCness where he is sweet to/regarding Rachel.
It is currently the most popular (non-canon) pairing for Rachel.
He is the school's badass bully and she's the school geek thats a bit bossy, they are both incredibly talented when it comes to singing and when they are together they bring out the best qualities in each other.
Is that even a question, duh Puckleberry they blow Finchel and St. Berry out of the water, even Mark and Lea ship for them
Fanboy: Puckleberry! They're a couple of good looking Jews. It's natural.