The following factors should be considered when choosing a domain: 1. Interested: Choose a field that interests you so that you can better devote yourself to creating and sharing. 2. Market potential: Choose a field with market potential, such as popular topics, popular cultural elements, or emerging trends, to gain readers 'attention and benefits more easily. 3. Creation ability: Choose a field that you are good at to be able to create and share better and obtain higher royalties and recognition. 4. Competing environment: Choosing a competitive field requires more diligence and hard work in order to stand out from the fierce competition and obtain higher returns. There was no absolute answer to the question of which field would be more profitable because the profit would depend on the market demand and the performance of the creators. However, generally speaking, those areas with high market potential, fierce competition, and high demand might be more likely to obtain high returns. Therefore, when choosing the field of Baijia, one needed to consider various factors such as their interests, creative ability, and market conditions to make the most suitable choice for themselves.