Contributed a review of Azure Monitor: The solution provides observability to check everything in the cloud, but it’s really hard to query the logs

Contributed a review of Grafana Loki: An easy-to-set-up solution that has a simple dashboard and can be used by non-technical people

Contributed a review of Elastic Observability: An affordable solution with the text search feature, but its retrieval of logs and metrics from all the instances should be improved