In the Barron Blog, I've discussed "The Christian Afterlife" and "The Christian Heaven" in some detail. Heaven isn't some kind of vacation club where you sign aboard and get billions of years of free vacations. There is always work to be done. Jesus emphasized "Service to the least of the brethen". The parables of Christ revealed that a believer had to do productive humane work and that he would be accountable for the work he did.
It's interesting to note that Christians go to Heaven through "Grace". They do not earn their way into this realm. However, in some extraterrestial religions like "The Law of One", "A 51% Service to Others Degree" is needed to graduate from Earth to higher realms.
Different alien groups have contacted humans/prophets to spread their spiritual wisdom. Probably, they are seeking rehabilitated souls who can communicate telepathically and are highly intelligent. If you're after souls, why not go for the best.
Maybe, you want to navigate the afterlife on your own.Here's a few suggestions to help you.