Formal:
* Muito amor: This is the most direct and literal translation. It's appropriate for formal occasions or when addressing someone you don't know very well.
Informal:
* Muita paixão: This is a more affectionate way to say "lots of love" and implies a romantic or passionate feeling.
* Muita saudade: This translates to "lots of longing" and is often used when saying goodbye or expressing missing someone.
* Com muito amor: This means "with lots of love" and is a common way to sign off on a letter or email.
* Beijinhos: This means "kisses" and is a very informal way to express affection.
Other options:
* Te amo muito: This translates to "I love you very much" and is a very common way to express love in Portuguese.
* Meu amor: This means "my love" and is a very affectionate term.
The best way to say "lots of love" in Brazilian Portuguese will depend on the specific situation and who you are talking to.