You can use https://blockchair.com/
The only way for you to report the address is if it's on an exchange wallet but if its beign moved already to a noncustodial wallet  the consider your coins gone just as it's has been mentioned in the comment .

There's actually almost nothing that could be done to such person if he/she is using a non custodial wallet unless you are willing to sperm such person's account ( looks illegal but  still a low chance  as it's could be placed on coin control) but if there is an exchange wallet  link  then you can still get something done from your side