I am researching how to create a email newsletter. On convertkit the articles only seem to have landing pages for newsletters. Are there any Quality templates/ examples on email newsletters that anyone could provide?

Not sure of any templates but check out Meera Kothand. She's an email marketing guru I follow and she's always giving away freebies or teaching/blogging about putting together email sequences. I've learned a lot from her. https://www.meerakothand.com/114  Plus she has a free email course going right now.

I find Pat Flynn's Smart Passive Income newsletters extremely valuable. Basically his structure goes something like this:

1. What's top of mind
2. Promo of latest content/podcast/video
3. List of recommended tools of the week
4. List of other useful articles from other sources
5. Sponsor message (if any)

I don't know of any template galleries, and I'm guessing this is because emails with the best deliverability rates will seem more like an email from a friend rather than a template designed by a corporation. I don't think there's anything wrong with making your email template highly designed, but I think CK likes to keep it simple, so you probably won't find a lot of highly-designed examples on their site or articles. 

Here's a few articles about everything above:
- https://convertkit.com/fancy-email-templates101
- https://help.convertkit.com/en/articles/2943289-the-new-email-editor87
- https://help.convertkit.com/en/articles/3297902-the-visual-email-template-editor88