Use Dmitry (Deepmagic Information gathering Tool) or
Dirscanner - Simple script for web directory scanning :
https://github.com/SneakyTurt1e/Dirscaner
Find secret link, API or sesitive data in website:
https://github.com/m4ll0k/SecretFinder
ReconSpider is most Advanced Open Source Intelligence (OSINT) Framework for scanning IP Address, Emails, Websites, Organizations and find out information from different sources:
https://github.com/bhavsec/reconspider
theHarvester ( E-mails, subdomains and names Harvester ) :
https://github.com/laramies/theHarvester
Hope it helps you.