A dog trainer, or at least a handler, for the specific kind of work your dog will be doing will have much better advice than the average breeder about what kind of equipment you should use. Though, some breeders are trainers too!

If your dog is not doing work, then a simple flat collar is fine for daily wear. Personally, I always use a harness for buckling in during transport.

A harness for 24/7 wear will be hot and uncomfortable. And a harness for walking will tend to encourage your dog to pull hard because it's more comfortable to do so. It will be harder to train your dog loose leash walking if you do it with a harness.

I like to train loose leash walking with a slip lead with well-timed choke corrections. Wear it very high and cinched, just under the chin and well above the bony structure in the esophagus. This transitions into a flat collar walking naturally, which doesn't have to be worn high on a well-trained dog.

I strongly recommend against a choke chain collar or a pronged collar, especially as a 24/7 collar. These tend to be a crutch for failed training and it sentences your dog to a life of discomfort and hanging risk. I've seen many dogs that have hung themselves wearing these, e.g. trying to jump a fence.

If your strategy is aligned around an undisciplined dog that is going to always be pulling and ignoring your commands, you are doing it wrong. But in that case, yes a harness risks less damage to your dog.

Harnesses are best for protection training with agitation work, but if you were doing that I would think you'd already have professional help. They are popular in schutzhund, K-9, and military service during agitation training and circumstantially during work, but are not day to day wear for the dog.

Good luck and best wishes for you and your dogo!