Okay, then I'll give a rough answer.

Equator (from west to east): Gulf of Guinea (intersecting with the 0° longitude), Congo Basin (23° east longitude), East African Rift Valley (30° east longitude), Malay Archipelago (Southeast Asia), Amazon Plain (northern South America).

Tropic of Cancer: Sahara Desert (northern Africa), Arabian Peninsula, Malva Plateau (Indian Peninsula), Ganges Delta, Indochina Peninsula (northern), Taiwan Strait and Taiwan Island (through Yunnan Province, Guangxi Zhuang Autonomous Region, Guangdong Province, Taiwan Province), Hawaiian Islands, Gulf of Mexico

Tropic of Capricorn: Madagascar Island (southeast Africa), Western Plateau (western Australia), Central Plains (central Australia), Great Dividing Range (eastern Australia), Paraná Plateau (52° west longitude in South America)

0° longitude: North Sea, English Channel, Iberian Peninsula,

60° East longitude: Ural Mountains, Aral Sea, Iranian Plateau, Arabian Sea

120° East longitude: Lena River, Central Siberian Plateau, Greater Khingan Range, Bohai Sea, Shandong Peninsula, Middle and Lower Yangtze Plain, Taiwan Strait

60° West longitude: Labrador Plateau, La Plata Plain, Drake Passage

120° West longitude (does not pass through any important terrain areas)

It is recommended to buy a "Middle School Geography Graphic Comprehensive Guidance Atlas" which is very practical

Note: Draw the above terrain areas on the atlas and take a look at them more, or draw them yourself. It does not require them to look good. I just hope you remember to be down-to-earth.

I hope my answer can help you