Here are some safer ways to find a duo partner:
Look for in-game channels or communities: Many games have built-in chat channels or forums where players can look for teammates. These can be a good way to find someone who speaks Portuguese and is on the Brazilian server.
Use a community Discord server: Many games have unofficial Discord servers where players can chat and find teammates. Look for a server for your specific game and see if there's a channel for finding duos.
Social media groups: There may be Facebook groups or subreddits dedicated to your game and the Brazilian server. These can be another good place to look for potential teammates.