I used to to my chickens beer can style until I spatchcocked one and that is the only way to go. I have not brined one and mine always turn out moist and juicy. I use Oakridge BBQ Secret Weapon and the family loves them.
Good luck and experiment what is good to you may not be good to others.
OK Joe OS, WSM 18.5, OTS 22.5, BBQ Guru Digi 2, Vols Orange Thermapen