Fast implementation of monitoring & logs

Every project needs monitorings and debugging tools like logs, etc. I wish I had a good solution I could reuse across all my launches. What I would like to see: - straightforward & easy setup - all in one place (composing different metrics from various of services) - not expensive What I use now: - Sentry for errors monitoring - Digital Ocean default graphics & notifications - PM2 monitoring (free version) - Nothing for reading logs, though :( Of course, these all the separate tools, requires more browser tabs to be open. And I need to do re-authentication time to time because sessions expiration, etc. What could you recommend? Please share your tool set.