Additional text box or link list plugion

Hello!
I am looking for a plugin that will give me a separate text box after my post text, or ideally, something that I could input
– Slug – link
– Slug – link

To put this into context, I am a wedding photographer and like to credit all vendors in the post. I know this photographer’s is custom coded but looking to do something similar.
TIA!

http://amyandjordanblog.com/2016/published-work/desert-sanctuary-camelback-wedding