When it comes to expressing solidarity and support for someone or something, the phrase "stands with" is often used. However, there are various synonyms that can be used to convey the same sentiment. You can say "backs," "supports," "stands by," "is alongside," "champions," "defends," "endorses," "upholds," "stands up for," "confirms," "validates," "verifies," "attests to," or "sides with" to show that you are in favor of a person or cause. Using different words can add variety and color to your language and make your message more impactful and memorable.