Know boxing, Want to add something New

Hey Hey (krusty the clown laugh!)



I have boxed for 15 years. I aim to still box, but I would like to add a new skillset.



I am looking at Aikido, Judo and Kyushin Ryu Ju Jitsu (Japanese).



I like the methods of the styles. Would one be better suited than the other? Why?



Are these styles effective for the 'street'? (I am conditioned from boxing)



My logic is to combine a grappling art with boxing. (NOT BJJ)



Thanks for now