If you want to learn how to fight then join an MMA place. They will teach you boxing, muay thai, wrestling and bjj.
If you want to learn for self-defense then do JKD, JJJ and FMA.
I think it is important to have a strong base in one and then learn some others. You shouldn't learn so many that you know a little of each. That is not good. Also I think it is important to try tradional as well as modern martial arts.
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