"Kisses to" is a phrase that conveys affection and warmth. While commonly used as a closing sentiment in letters or messages, there are several synonyms that can be used to evoke similar emotions. "Sending love" is a simple and direct replacement, while "sending hugs" adds a physical element to the sentiment. "Thinking of you" can be a more subtle way to express affection, while "wishing you well" conveys a general sense of care and concern. "Warm regards" or "warm wishes" can be used more formally, while "lots of love" or "love and kisses" can be more playful and affectionate. Ultimately, the synonym chosen should reflect the tone and relationship between the sender and recipient.