My iPhone was stolen.. Can i find it another way besides find my iPhone?

Not a good an idea to remove it from the account through. You will want to keep it on your account and mark it as lost through Find My, is it cannot be used by the thieves. Marking it as lost will stop it form being a trusted device

click here ➜ If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

None. Find My is the one way designed to find your iPhone. If there were other ways, Find my would be rather pointless don't you think?

Carriers can use the IMEI to triangulate the position of a device off of their towers, but again then device needs to be turned on and and connected to their service for that to happen, and they usually only do that for missing person's cases via a warrant.

You could still report the loss to local police, notify your wireless carrier and go to appleid.apple.com to remove the missing device from your list of trusted devices (not sure if this works in your case but may be worth a try). Good luck.