Seriously now.
This is a bit ridiculous in my opinion.
It’s clear that you can read and perform a search. If you can find a similar problem in a thread you can also read the suggested treatments posted there.
Honestly, I’m frustrated that you are posting about a problem with an animal that you claim to need emergency help with, but are refusing to participate in the least.
So knowing nothing about your bird and since I don’t have a crystal ball to see the injury you won’t even give a clear discription of, here are my very best suggestions.
If you aren’t comfortable with them, then tomorrow get someone to help you with photos.
Then get back to us.
In the meantime:
Keep the bird inside. Warm and quiet.
Small amounts of water with electrolytes or a pinch of sugar ONLY, for the next 12-24 hours to allow the crop to maybe seal up on its own. Stretching out won’t let this happen.
Absolutely No treats, No seeds.
In that time perhaps, that hole which I hope you’ve cleaned, might close on its own.
In my opinion, feeding the bird will potentially allow food to contaminate the inside of the chest cavity, causing infection.
Editing to add: if it is past dark where you live, don’t give any more water tonight. Until the morning.