A group of individuals in a new land

[Disboard]

Looking for a book in which a large group of people are sent to a new land. Their objective should be either exploration/colonization. It should be very difficult to contact the homeland/home planet/point of origin.

I am mainly looking for types of conflicts that will appear in such an endeavor. Conflicts, if possible, should be inside the group.

Thank you in advance!

[Nora]

To Be Taught, If Fortunate might work, although it’s not a very large group

[Rosa]

Annihilation

[Crystal]

Maybe Lord of the Flies?

[Rainbowheart]

The Martian Chronicles

[Scott]

I Am Behind You

[Nente]

The Many-Colored Land, to a point.

[RabbitMilitia]

Maybe The Terror by Dan Simmons

[Aerulan]

Freedom's Landing by Anne McCaffrey, people get dumped on an alien planet as a test of it's habitability and have to survive.

For something darker but still very good
The Last Hour of Gann Earth's first attempt at colonists crash land on the wrong planet. It's got A LOT of interpersonal conflict among the survivors. It's also got pretty graphic violence and sex so if that's an issue for you, you may want to skip it.

[Rachel]

Oryx and Crake somewhat fits the bill. Although the conflict is more about creating the new land than living in it (being vague to avoid spoilers)

[Lobstergirl, au gratin]

The Passage