There are a variety of synonyms for the phrase "am glad" that can be used to express happiness or contentment. Some common options include "am pleased," "am satisfied," "am joyful," "am delighted," "am grateful," and "am happy." Each of these phrases carries a slightly different connotation and can be selected depending on the context and tone of the message. For example, "am pleased" might be a more reserved and formal way to express happiness, while "am delighted" conveys a greater sense of excitement and enthusiasm. Regardless of which synonym is used, each can be a powerful way to communicate positive feelings to others.