I think if you just stick to a similar style, which seems to be Biblical word names, it would be fine. I don’t think you have to stick to another J name. I think any of the names you are currently considering are awesome and would go well with [name_m]Judah[/name_m] and [name_f]Jubilee[/name_f]. I knew a sibset, [name_f]Jubilee[/name_f] and [name_f]Ave[/name_f] [name_f]Regina[/name_f] (but they were Catholic not sure if you are Catholic), but I thought that was beautiful.