GNOME Keyring is described as 'Collection of components in GNOME that store secrets, passwords, keys, certificates and make them available to applications' and is an app. There are six alternatives to GNOME Keyring for a variety of platforms, including Linux, Flathub, GNOME, GnuPG and GTK apps. The best GNOME Keyring alternative is Seahorse, which is both free and Open Source. Other great apps like GNOME Keyring are Gnome Encfs Manager, KWalletManager, hyprpolkitagent and Passbook.
Seahorse is a GNOME application for managing encryption keys and passwords in the GNOME Keyring.
As said, it's a frontend, not replacement.
The Gnome Encfs Manager is an easy to use manager and mounter for encfs stashes. It allows you to create encrypted directories, any file that is placed in such a directory will be encrypted.
This is a frontend for GNOME Keyring, not an alternative to it
By using the Frameworks wallet subsystem it not only allows you to keep your own secrets but also to access and manage the passwords of every application that integrates with the wallet.
hyprpolkitagent is a polkit authentication daemon. It is required for GUI applications to be able to request elevated privileges.
lightweight, integrates in hyprland, and low dependecies
This is a frontend for GNOME Keyring, not an alternative to it
Key Rack allows you to view, create and edit secrets, such as passwords or tokens, stored by apps. It supports both Flatpak secrets and system-wide keyrings.
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This is a frontend for GNOME Keyring, not an alternative to it