The phrase "as an alternative for" is often used to suggest a different option or choice. However, there are numerous synonyms that can be used interchangeably in a sentence. Some of these synonyms include "instead of," "in place of," "as a substitute for," "as another option," "in lieu of," "as a replacement," and "in exchange for." Each of these phrases conveys the same meaning as "as an alternative for," and can help create a variation in sentence structure, making your writing more interesting and engaging. When using synonyms, be sure to choose the phrase that best fits the context of your sentence.