Instead of spontaneously choosing a niche, I recommend studying the basic principles of dropshipping 101 here
https://easync.io/articles/dropshipping-101/ It breaks down the process from product selection to automation. It's worth assessing risks through a demand test: launch an ad campaign for one product without investing in purchasing. Prospects depend on your ability to analyze the market and work with customer service. Avoid mistakes by starting with one platform and one supplier and gradually expanding your product range.