My iphone recently died from water damage but i had an icloud account set up with all the phones details however i cant remember the username or password for the account so i can put the information onto a new phone any suggestions?
First, try and login to icloud.com and verify that you have your contacts and all the information you need there.
If you dont remember your password but still have access to your email you can try by using Apples iforgot page: https://iforgot.apple.com/password/verify/appleid
You can try several different emails until you know your login, if you still have access to your email that is.
If you dont have access to your email, Apple can change that when giving their support a call, be prepared to answer a lot of questions amongst your security questions and for the last digits in your credit card number.