SIEM or similar software for log viewing and rule based notifications

Hi friends, I wanted to ask if there is a tool like SIEM or similar software to SIEM that is used for log viewing and rule based notifications? I would like to let me know if a tool like it exists cause it is very good so you don’t have to execute thousand commands to see the logs that are of your interest. I think i saw someone posted software like a SIEM that was developed by himself here on the forum but i am not so sure…

Thank you

Any SIEM product will do as long as you make it parse the logs you want to monitor.