In addition to managing Vanity URL will be thru rewrites rules within AEM, which is to configure your /etc/map.
Here are the steps:
- configuration tree located below /etc/map
- create a new folder: type sling:Mapping
- define sling:match – partial regular expression which is used instead of the node’s name to match the incoming request
- define sling:redirect or sling:internalRedirect depending on the type of redirect
Normally it's recommended combine this with dispatcher configuration to reduce amount of hit aem publish instance but for sure you will require infra or architect with good experience for that