Best service for managing multiple Linux servers?

So at this point I have multiple Linux servers. I have about 5 separate servers at the moment. Managing them all is very difficult as I have to login to each one of them to update it or check stats. I'm wondering if anyone here knows what software I could use to potentially manage all of the servers under a single pane of glass control panel? I'd prefer to host it myself but cloud would work too. Like, I go to a URL and I can see all the servers, remotely see the status and update them if needed. I don't need much more than that besides that and stats / error monitoring. But it's very tedious to have to keep track of all of them at the same time.