There are a variety of synonyms that can be used in place of "set aflame". Some examples include ignite, kindle, spark, inflame, burn, and torch. "Ignite" and "spark" refer to the act of starting a fire or flame, while "kindle" implies a slower and more deliberate process. "Inflame" can refer to both physical and emotional fires, while "burn" is a more general term that can be used to describe any type of fire. "Torch" specifically refers to using a flame as a tool or weapon, often in a destructive manner. All of these synonyms convey a sense of heat and intensity, making them powerful words for describing fiery situations.