Just coming up with a word that starts with J can be troublesome. I can’t think of many J words off the top of my head. I like to play Js in the middle of the board near a vowel to keep my options open. Probably should get some bonus points for mojo and juju.
Some 3 letter J words: haj, jab, jag, jam, jar, jaw, jay, jee, jet, jeu, jew, jib, jig, jin, job, joe, jog, jot, jow, joy, jug, jun, jus, jut, raj, taj
Some 4 letter J words: ajar, dojo, jabs, jack, jade, jail, jamb, jars, java, jaws, jazz, jefe, jell, jest, jobs, jota, jugs, juju, mojo (to name a few)