Martial art safety.

30 year old former college athlete looking to pick up a martial art and train for a long time. Tried BJJ but due to a past shoulder dislocation and knee surgery I’m weary as doing that as a primary martial art.

Interested in any suggestions but been looking at Boxing and Muay Thai as “safer” alternatives (provided all I do is bag work, drills, and light sparring). My main objective is to get into elite shape again, get good at the martial art, and longevity.

Aware of brain risk with striking but I don’t have any desire to compete. Curious to hear what people think.

Thank you