I recently released a new error tracker Faulty, based largely on error_tracker, but instead of hosting your errors locally it sends them to the accompanying FaultyTower website. Errors are tracked from Logger and telemetry events, integrations are available for Phoenix, Plug, Oban and Quantum.
Installation is as simple as mix igniter.install faulty. The FaultyTower website allows you to create users, organizations and projects within those organizations. You can be notified of new errors by e-mail, integration with ntfy.sh or Github issues.