One reason owners struggle with jumping, barking, and frantic greetings is that they start training after the dog is already extremely excited.
Watch the buildup
Excitement usually has a progression. You may notice faster movement, increased vocalization, intense staring, pacing, or a sudden inability to take food normally.
Those early signs are useful opportunities for intervention.
Reinforce the earlier state
Suppose your dog becomes excited when someone approaches the house. Instead of waiting for barking at the window, reward them when they first notice the person and remain composed.
Over many repetitions, calm observation can become more valuable than escalating into frantic behavior.
Lower the difficulty when needed
Sometimes the right answer is simply more distance. Move away from the trigger, close the curtain, use a gate, or create a quieter setup.
You don't need to prove that your dog can remain calm at maximum excitement. You want to practice the skill while the dog is still capable of learning.
The earlier you catch the emotional escalation, the more choices your dog still has.