These two martial arts are effective for self-defense. Both martial arts are practiced widely around the world, it is different and unique in their own ways. The Muay Thai approach is more striking and standing based. BJJ, on the other hand, is leaning more towards ground-based for its effectiveness and uses your legs, arms, and hips to choke and avoid any submissions. If you are new to martial arts and do not know which to pick, It’s best to go for a trial class and see which suits you best.