There are a plethora of alternatives to the phrase "germane to." Some synonymous words could be relevant, pertinent, applicable, or connected to. Each of these words shares the characteristic of being related or important to a particular topic or matter. Other possible synonyms for "germane to" could be apropos, suitable, fitting, or appropriate, as each word depicts a sense of being suitable or fitting for a particular purpose or circumstance. It is essential to note that each word has its unique context and connotation, so choosing the right synonym would heavily depend on what exactly you're trying to say.