Buy an ESP8266 : https://www.banggood.com/custlink/3m3E8Nvt61
View full details and download links here : https://blog.connectinut.co.uk/2021/02/20/kick-anyone-out-of-their-own-wifi-without-their-password-esp8266-deauther/
This tiny device allows you to kick anyone out of their own WiFi without knowing their password. It works by exploiting a vulnerability in the WPA-2 PSK system, where an unauthorised user can kick an authorised user without first needing to authenticate with the password.
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https://www.youtube.com/watch?v=xs-2wKq-FzE