Here is a working launch abort system idea which works with multiple "flea" solid rocket boosters below the payload on crewed missions. Here is a download link to a video of a test flight for this abort system in case the rocket explodes on the launch pad: https://drive.google.com/file/d/1lIgMJ-BntLonJthoOr4fgHJ0n6KT6VeM/view?usp=sharing
Here is another download link to a video for a mid flight abort test: https://drive.google.com/file/d/1eKBe8QXtJxZI8xdcmeMSo79wErdDP1Qn/view?usp=sharing