"solução" - "solução|opção|resposta".

"armazenamento" - synonyms could be "armazenamento|guardar|salvar" but need to fit the context. Maybe "armazenamento|guardagem|salvamento"?

But in Portuguese, "mais compatível" is a fixed phrase, a common collocation. So perhaps in the output, it's better to treat "mais compatível" as a whole and provide three alternatives for that phrase. However, the user's instruction says to swap each word with three alternatives, which implies each individual word. So need to parse each word.

"confiável" - "confiável|seguro|dependável".

"do serviço" - "do serviço|do sistema|do sistema de nuvem".

"Keepsafe" is a proper noun, so it stays.

I need to check each word carefully. Some words might not have direct synonyms, so I might need to repeat the word in all three variants. For example, articles like "uma" might just have uma to meet the format requirement without changing the meaning.