linkstore.app - anonymously store and organize links to your fav content
WiseStamp - WiseStamp allows you to easily create and implement slick and unique email signatures for your business.
LinkBin - LinkBin is an app for iOS, iPadOS and macOS that allows temporary storage of links.
NEWOLDSTAMP - Email signature generator
Signaturely - Super simple eSignature software
Sigstr - Email signature marketing