What are the main visa types for moving to Colombia?

Colombia has three visa categories: V (Visitor — tourism, digital nomad, short stays), M (Migrant — marriage to a Colombian, work, investment, retirement/pension, student), and R (Resident — after holding certain M visas for a few years, or by investment). Which one fits depends on your situation and nationality. Apply through the Cancillería (cancilleria.gov.co); always confirm current requirements there, as they change.

It depends on what you want to do in Colombia: live, study, get married...

It depends on what you want to do: Study, work, invest in properties, start a business...