Any tips for dealing with sibling rivalry? My kids fight all the time!!

It will get better. Just give some time to them. I had 5 siblings and once in awhile we do argue like alot but my mom always taught me to share my foods, toys etc Teach them to share most of the things. Tell the sibling to protect each other at all cost. Spend time with them equally, never favourite any. It will helps and took some time