When it comes to blogging about Brazil, it's essential to choose keywords that are not only relevant to your topic but also have a decent search volume and manageable competition. Here are some keyword ideas that can help you get started:

1. "Travel in Brazil"
2. "Brazilian Culture and Traditions"
3. "Best Beaches in Brazil"
4. "Cuisine of Brazil"
5. "Carnival in Brazil"
6. "Rio de Janeiro Travel Guide"
7. "São Paulo Attractions"
8. "Amazon Rainforest Adventures"
9. "Brazilian Music and Dance"
10. "Famous Landmarks in Brazil"
11. "Brazilian Soccer (Football)"
12. "Eco-Tourism in Brazil"
13. "Learning Portuguese in Brazil"
14. "Historical Sites in Brazil"
15. "Brazilian Festivals and Celebrations"
16. "Brazilian Wildlife and Nature"
17. "Brazilian Fashion and Style"
18. "Economic Growth in Brazil"
19. "Brazilian Jiu-Jitsu"
20. "Healthcare in Brazil"

1. "Exploring the Marvels of Brazil: A Traveler's Guide"
2. "Samba, Soccer, and Sunsets: Unveiling Brazil's Cultural Riches"
3. "Paradise Found: Brazil's Top Beach Destinations"
4. "From Feijoada to Brigadeiro: A Culinary Journey Through Brazil"
5. "Dancing in the Streets: Carnival in Brazil Unveiled"
6. "Rio de Janeiro: The Ultimate Traveler's Handbook"
7. "São Paulo: Brazil's Megacity Marvels"
8. "Amazon Adventures: Exploring the Heart of Brazil"
9. "Bossa Nova and Beyond: The Music of Brazil"
10. "Christ the Redeemer and Beyond: Iconic Landmarks in Brazil"
11. "Kicking It: The Passion of Brazilian Soccer"
12. "Eco-Wonders: Exploring Brazil's Breathtaking Natural Beauty"
13. "Language of Love: Learning Portuguese in Brazil"
14. "From Slavery to Samba: Brazil's Historical Legacy"
15. "Fiesta Forever: Brazil's Vibrant Festival Scene"
16. "Wild Amazon: Discovering Brazil's Unique Wildlife"
17. "Brazilian Fashion: A Blend of Tradition and Modernity"
18. "Emerging Economies: Brazil's Growth Story"
19. "Mastering the Art of Brazilian Jiu-Jitsu"
20. "Healthy Living: Healthcare in Brazil Explored"

before finalizing your keywords, make sure to research their search volume using tools like Google Keyword Planner or SEMrush. Additionally, consider the specific focus of your blog and your target audience to choose the most appropriate keywords. Remember that long-tail keywords, which are more specific and have lower competition, can also be valuable for driving targeted traffic to your blog.