Every martial arts has its own strong points.
Some are good for distant fighting, some are good for close
range.
Some teaches you how to handle a group, others are best suited for
1 to 1.
Some focuses on brute force, others on the relaxed mind and body or
borrow the attacker's energy and return it back to him.
It all depends on what you what.
If you prefer your attacker not to be so near you, an art that has
strong focus on kicking and long range punching will be helpful.
Taekwando is one.
If you prefer close distance, then look at Xingyi or Hung Gar.