The evolution-data-server package provides a personal information management application that provides integrated mail, calendaring and address book functionality. The evolution-data-server package provides a single database for common, desktop-wide information, such as a user's address book or calendar events.
acquired package info from repodata DB: repodata/1878cc60a19e65efc93d1a539275c5a6799b0acbd7796ee105712c44cae47ab4-primary.sqlite.bz2
gnome-contacts is a standalone contacts manager for GNOME desktop.
Library aggregates people from multiple sources
libfolks is a library that aggregates people from multiple sources (eg, Telepathy connection managers) to create metacontacts.
GNOME Online Accounts provides interfaces so that applications and libraries in GNOME can access the user's online accounts. It has providers for Google, Nextcloud, Flickr, Foursquare, Microsoft Account, Microsoft Exchange, Fedora, IMAP/SMTP and Kerberos.