Alphonso Johnson is one of my bass heroes! He was a guest at one of our camps in Nashville. His playing is superb and he's a fine gentleman.
As far as 5 strings go, I usually make recommendations based on price range. But you didn't give me a price range.
Here are the basses that I play and love.
Fodera, MBass, Accuracy Basses, Rybski and Adamovic. They all make fine basses.
You should check them out as well as others. I recommend that you call, text and/or email them all and see west you can get in your price range.