If you want to find your companion in Fallout 4 on PS4 or XBOX One, you’ll need to buy and install the Vault-Tec DLC, play it and when you get build options, install a Settler Management Console, pictured below:
Select VIP and then the desired companion – it’ll show you on the map where the companion is. If your companion is on a supply line like Nick Valentine was for me (I was playing around with the game mechanics!), you’ll then need to follow them and ask them to come with you once you have caught up to them.
Happy Bank Holiday Gaming 🙂
Saturday Gamer xx