Here are some cool Threat Intelligence tools to use for bug bounty.

[JAC4L]

certstream.calidog.io
app.any.run
virustotal.com
phishtank.org
urlhaus.abuse.ch/browse/
urlscan.io
shodan.io
search.censys.io
maltego.com
ipinfo.io
domaintools.com
projectdiscovery.io