Here are some other ways to say "I love you" in French, depending on the context and the person you are talking to:
* "Je t'aime beaucoup" (I love you very much) - This is a more intense way of saying "I love you."
* "Je t'aime de tout mon cœur" (I love you with all my heart) - This is a very romantic and passionate way of saying "I love you."
* "Je t'adore" (I adore you) - This is a more informal way of saying "I love you."
* "Tu es l'amour de ma vie" (You are the love of my life) - This is a very strong statement of love.
It's important to note that "Je t'aime" is the most common and universal way to say "I love you" in French. It's appropriate for both romantic and platonic relationships.