I bought an iphone 8 and it has an apple id lock can I reset it

Turn off Activation Lock --> https://support.apple.com/HT201441 - An activation lock can only be removed using the log-in information for the account that applied the lock.

If this is a device for which you are not the original owner, get the owner of the account to remove the lock or return the device for a refund. The device is otherwise useless to you. If the owner has not provided contact information as a message showing in the login screen there is no way to contact the owner unless the person who gave you the device knows them.