Whois
Gives information around a website. Comes with Kali by default
Subfinder
Finds subdomains of target website
Asset Finder
Should be installed with pimp my Kali. similar to subfinder but also looks for some assets tied to the target sight. Remember to check scope of work.
Amass
Great tool but can take a long time. it is very robust though
httprobe
gowitness
Goes out and takes pictures of domains.