I have had the club glove Collegiate for at least a half dozen years. In addition to multiple trips around the US, it has been across the pond twice. Holds everything through a mid sized staff bag.
Using the metal stiff arm to protect the clubs, nothing inside has ever been damaged. Others remove the wood’s heads and carry them separately. Wrapping all the heads with a towel can minimize chatter.
There are those that swear by hard cases. Particularly in Europe, they tend to be difficult to store in a car. Once the bag is emptied, it folds over to half the size and fits in the back of any car.

Most everyone, including myself will say Club Glove golf travel cases are the best soft case you can buy. They now are a Titleist sister company under the Acushnet brands. Two sizes, I have the smaller version and it will fit all the stand bags. The large one is for mid and full size staff bags. You can get both sizes with the Titleist logos via the Gear tab above. They are under the Travel section. I still prefer to go hard case for extra protection and most airlines will not cover clubs or bag damage when using soft cases.