Jesus said the same, some standing here shall not taste death before they see the coming of the son with Angels, and Jesus rewarding to every man according to his works.
No he didn't say that, the coming of the Kingdom and the Last Day are different events. He said the Son of Man will come and give judgement and that is most certainly true, but this is what he said concerning the people standing there at that time:
"Truly, I say to you, there are some standing here who will not taste death until they see the Son of Man coming in his kingdom." - Matthew 16:28
Nothing about judgement. Then with the Transfiguration:
"And after six days Jesus took with him Peter and James, and John his brother, and led them up a high mountain by themselves. And he was transfigured before them, and his face shone like the sun, and his clothes became white as light. And behold, there appeared to them Moses and Elijah, talking with him. And Peter said to Jesus, “Lord, it is good that we are here. If you wish, I will make three tents here, one for you and one for Moses and one for Elijah.” He was still speaking when, behold, a bright cloud overshadowed them, and a voice from the cloud said, “This is my beloved Son, with whom I am well pleased; listen to him.” When the disciples heard this, they fell on their faces and were terrified. But Jesus came and touched them, saying,
“Rise, and have no fear.” And when they lifted up their eyes, they saw no one but Jesus only. And as they were coming down the mountain, Jesus commanded them,
“Tell no one the vision, until the Son of Man is raised from the dead.” And the disciples asked him, “Then why do the scribes say that first Elijah must come?” He answered,
“Elijah does come, and he will restore all things. But I tell you that Elijah has already come, and they did not recognize him, but did to him whatever they pleased. So also the Son of Man will certainly suffer at their hands.” Then the disciples understood that he was speaking to them of John the Baptist." - Matthew 17:1-13
Peter was among them, here's how Peter describes it:
"For we did not follow cleverly devised myths when we made known to you t
he power and coming of our Lord Jesus Christ, but we were
eyewitnesses of his majesty. For when he received honor and glory from God the Father, and the voice was borne to him by the Majestic Glory, “This is my beloved Son, with whom I am well pleased,” we ourselves heard this very voice borne from heaven, for we were with him on the holy mountain." - 2 Peter 1:16-18
Did Jesus come with the Kingdom? Yes He did, this is clear from Mark and other books of the Gospel:
"Now after John was arrested, Jesus came into Galilee, proclaiming the gospel of God, and saying,
“The time is fulfilled, and the kingdom of God is at hand; repent and believe in the gospel.”" - Mark 1:14-15
"Knowing their thoughts, he said to them,
“Every kingdom divided against itself is laid waste, and no city or house divided against itself will stand. And if Satan casts out Satan, he is divided against himself. How then will his kingdom stand? And if I cast out demons by Beelzebul, by whom do your sons cast them out? Therefore they will be your judges. But if it is by the Spirit of God that I cast out demons, then the kingdom of God has come upon you." - Matthew 12:25-28
"Being asked by the Pharisees when the kingdom of God would come, he answered them,
“The kingdom of God is not coming in ways that can be observed, nor will they say, ‘Look, here it is!’ or ‘There!’ for behold, the kingdom of God is in the midst of you.”" - Luke 17:20-21
So everyone present when Jesus said that had seen the Kingdom of God come, whether they knew it or not, but specifically Peter, James and John were eyewitnesses to the coming of the Kingdom.