Formal:
* Tout comme eux: This is the most literal translation and is generally used in formal writing.
* De la même manière qu'eux: This emphasizes the similarity in method or approach.
Informal:
* Comme eux: This is a simpler and more common way to say "just like them" in everyday conversation.
* Pareil qu'eux: This emphasizes the similarity in appearance or behavior.
* Exactement comme eux: This emphasizes the exactness of the resemblance.
Other options:
* À l'instar d'eux: This is a more formal way to say "like them" and implies following their example.
* De même que eux: This is another formal way to say "just like them" and emphasizes the shared quality or characteristic.
The best way to choose the right phrase depends on the specific context of your sentence and the level of formality you desire.