General:
* Highland: Elevated land, usually with a plateau or mountain
* Lowland: Land that is lower than the surrounding area
* Wasteland: Barren or desolate land
* Woodland: Land covered in trees
* Wetland: Land that is saturated with water
* Landfill: A site for burying garbage
* Landlocked: Surrounded by land, having no coastline
* Landowner: A person who owns land
* Landmass: A large continuous expanse of land
* Landform: A natural feature of the Earth's surface
* Landrace: A breed of domesticated animal or plant developed in a specific region
* Landmark: A prominent or well-known feature of a landscape
* Landslide: A rapid downhill movement of rock, earth, or debris
* Landfall: The arrival of a ship or aircraft on land
* Landline: A telephone line that uses wires
* Landing: The act of coming to rest on land
* Landlord: A person who owns and rents out property
Specific types of land:
* Airstrip: A narrow strip of land used for aircraft landing and takeoffs
* Farmland: Land used for farming
* Graveyard: Land used for burying the dead
* Highland: Elevated land
* No man's land: An area of land contested between two opposing forces
* Playing field: A piece of land used for playing sports
* Promised land: A place of happiness, prosperity, or peace
* Wasteland: Barren or desolate land
More specific combinations:
* Land breeze: A wind blowing from the land towards the sea
* Land rights: The legal right to possess and use land
* Land use: How land is utilized by humans
* Land value: The economic worth of a piece of land
* Landowner: A person who owns land
* Landlocked: Surrounded by land, having no coastline
Figurative:
* Dreamland: A place of fantasy or imagination
* Promised land: A place of happiness and fulfillment
* Never-never land: A place of fantasy or unreality
This is not an exhaustive list, but it gives you a good starting point! Let me know if you have a specific category or type of compound word in mind, and I can give you more examples.