All religions do not talk about life after death, there are few and here are some that I could understand and I would refer to mainly https://en.wikipedia.org/wiki/Afterlife to substantiate my views.
Transformation of identity from one form to another. Lord Krishna says just as a man discards his old clothes and wears new ones; similarly the soul discards the old body and takes on a new one. In Hinduism, the belief is that the body is but a shell, the soul inside is immutable and indestructible and takes on different lives in a cycle of birth and death. The end of this cycle is called “Mukti” (Sanskrit: मुक्ति) and staying finally with supreme God forever; is “Moksha” (Sanskrit: मोक्ष) or salvation.
Buddhists maintain that rebirth takes place without an unchanging self or soul passing from one form to another. The type of rebirth will be conditioned by the moral tone of the person’s actions (kamma or karma).
The Islamic belief in the afterlife as stated in the Qur’an is descriptive. The Arabic word for Paradise is Jannah and Hell is Jahannam. Their level of comfort while in the grave depends wholly on their level of Iman or faith in the one almighty creator or supreme being God or Allah. In order for one to achieve proper, firm and healthy Iman one must practice righteous deeds or else his level of Iman chokes and shrinks and eventually can wither away if one does not practice Islam long enough, hence the depth of practicing Islam is good deeds.
Christian eschatology is concerned with death, an intermediate state, Heaven, Hell, the Second Coming of Christ, the resurrection of the dead, a rapture, a tribulation, the Millennium, end of the world, the last judgment, a new heaven and a new earth, and the ultimate consummation of all of God’s purposes. Eschatological passages are found in many places, especially Isaiah, Daniel, Matthew 24, Matthew 25, and the Book of Revelation. Although punishments are made part of certain Christian conceptions of the afterlife, the prevalent concept of “eternal damnation” is a tenet of the Christian afterlife.
Jesus also maintained that the time would come when the dead would hear the voice of the Son of God, and all who were in the tombs would come out, who have done good deeds to the resurrection of life, but those who have done wicked deeds to the resurrection of condemnation. According to the Gospel of Matthew, at the death of Jesus tombs were opened, and at his resurrection many saints who had died emerged from their tombs and went into “the holy city”, presumably New Jerusalem.
Christianity is one faith that talks in depth of a life after death, A complete book named Revelation talks about it along with the gospels and the letters of Paul, What authenticates this is the fact that these books have been written by different authors at different locations and time span yet they all speaking in one voice.
Christianity talks about one life born in Earth and then death. After death is the place called paradise where the souls is persevered until the day of judgement. Second Coming of Jesus Christ is to take place before Judgement and all those alive will be transformed with a new spiritual body and those died in Christian faith will also have a new spiritual body. They will be taken along with Jesus to heaven for an eternal life and will receive reward according to the work they have done. While those who are not in faith in Jesus will be sent to Hell.
However Bible is very clear in its teachings that afterlife to eternity is only through Jesus.
For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life.
Jesus answered, “I am the way and the truth and the life. No one comes to the Father except through me.