1. Eco-Friendly Products: Start a business that offers eco-friendly products, such as reusable items, sustainable packaging, and organic cosmetics, catering to the growing environmental consciousness.

2. Online Language School: Brazil's desire to learn English and other languages presents an opportunity for an online language school or platform offering language courses.

3. Agri-Tech Solutions: Develop technology solutions for the agricultural sector, including precision farming tools, crop monitoring systems, and agricultural data analytics.

4. Health and Wellness Services: Launch a business focusing on health and wellness, offering services like fitness coaching, personalized meal plans, and wellness retreats.

5. E-Commerce Platform for Handcrafted Goods: Create an online marketplace where artisans and craftsmen can sell their unique, handmade products to a wider audience.

6. Mobile App for Local Tourism: Develop a mobile app that provides tourists with information on local attractions, events, and activities, promoting both tourism and local businesses.

7. Renewable Energy Installation: Establish a company that specializes in installing solar panels, wind turbines, or other renewable energy solutions to meet the increasing demand for sustainable energy sources.

8. Personalized Virtual Events: Offer virtual event planning services, specializing in creating personalized and engaging online events for companies and individuals.

9. Health Tech Solutions: Create innovative healthcare technology, such as telemedicine platforms, health monitoring apps, and medical data management systems.

10. Urban Farming and Hydroponics: Launch an urban farming business that utilizes hydroponic systems to grow fresh produce in urban areas, addressing the demand for locally sourced foods.