Wa `alaykum As-Salamu waRahmatullahi wa Barakatuh.
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
Dear questioner, we would like to thank you for the great confidence you place in us, and we implore Allah Almighty to help us serve His cause and render our work for His Sake.
Reading the Qur’an together in unison is not prescribed, because it is not mentioned in the Sunnah. And if it is done in a loud voice that disturbs those who are remembering Allah and sitting there, then it is even more disliked, because of the general meaning of the words of the Prophet (peace be upon him): “When one of you stands in prayer, he is conversing with his Lord, so let one of you know what he is saying to his Lord and do not raise your voices above one another in reciting when praying.” (Ahmad)
Answering your question, we would like to cite the following fatwa published on www.islamqa.info:
If what is meant is that they recite together in unison, pausing and stopping at the same time, this is not prescribed, and at the very least it is makruh, because there is no report from the Prophet (peace be upon him) or from the Companions that they did that.
But if that is done for the purpose of teaching, then we hope that there is nothing wrong with it. But if what is meant is that they gather to read the Qur’an in order to memorize it or learn it, and one of them reads whilst the others listen, or each of them reads to himself without raising his voice or reading in unison with others, then that is prescribed, because it is proven that the Messenger of Allah (peace be upon him) said: “No people gather in one of the houses of Allah, reciting the Book of Allah and studying it together, but tranquility descends upon them and the angels surround them and mercy covers them, and Allah remembers them to those who are with Him.” (Muslim)
Allah Almighty knows best.