enumeration topic
SSRFmap
Simple Server Side Request Forgery services enumeration tool.
redAsset
Enumerate subdomains by parsing Rapid7 FDNS dumps and CA transparency logs
webanalyze
Port of Wappalyzer (uncovers technologies used on websites) to automate mass scanning.
amass
In-depth Attack Surface Mapping and Asset Discovery
fdns
Concurrent Rapid7 FDNS dataset parser
resolver
Resolver allows performing DNS queries such as resolving a DNS name querying some records, DNS zone transferences and reverse IP lookups
asnrecon
ASN reconnaissance script
TIDoS-Framework
The Offensive Manual Web Application Penetration Testing Framework.
legion
Automatic Enumeration Tool based in Open Source tools
Asnlookup
Leverage ASN to look up IP addresses (IPv4 & IPv6) owned by a specific organization for reconnaissance purposes, then run port scanning on it.