As I mentioned above my wolf Buddy Jr Jr (yes I know his name should be Buddy the third) is lost and I really want him back, if anybody knows what to do please let me know it would be very appreciated!
On Bedrock Edition you could do a teleport command to teleport all wolves in loaded chunks to you. If I can recall correctly, the command is
/tp @e [type=wolf] @s.
I can't confirm if this command is the same for Java Edition, but it could be possible that they're the same.
I'd recommend doing the command in a safe, medium/large enclosed room, as in my experience the teleported mobs often launch themselves outward from their starting point in all directions in order to avoid entity cramming.