Is there a lot of inter-Latin American migration?

Ofc a lot of Latin Americans migrate to the United States. And I hear about Venezuelans migrating to some neighbouring countries. But is there more patterns of migration within Latin America? If so, Which countries are popular and why? If not, why not - I’m guessing quality of life and cultural differences would still attract people?

How are foreigners from other Latin American countries treated? As cousins? Or worse than other foreigners?

For context in Europe, there are many people moving to other European countries despite the quality of life being similar. I would’ve thought a single Spanish language (excl. Brazil) would have made this process easier aswell within Latin America.