In a society where digitalization thrives, opportunities for both conducting e-commerce and promoting it are enhanced. A common marketing strategy that has shown to be efficient is collaborating with Social Media Influencers. It is widely known that social media influencers can greatly help e-commerce companies get noticed. However, it has remained a problem figuring out what an appropriate influencer is for one’s business purposes and marketing objectives.  This study has gathered empirical data by conducting qualitative studies, including interviews with four e-commerce companies. The researchers followed a deductive approach in their investigation. The interviews have helped identify patterns related to the research questions and have generated new insights in the field. The research provides a deeper understanding of which parameters are suitable for specific purposes. Additionally, the thesis highlights the interconnections between these parameters to elaborate an overall understanding of the strategy. The potential risks associated with the strategy are also addressed. This thesis highlights why certain social media influencers are considered more suitable than others in the perspective of an e-commerce business.