For a fuller description of advice on this topic, see the below pdf:
A way to understand how to integrate sources smoothly into your paper can be to look at an example of how other authors have done it. The below is a screenshot from:
Luglio, D. G., Katsigeorgis, M., Hess, J., Kim, R., Adragna, J., Raja, A., Gordon, C., Fine, J., Thurston, G., Gordon, T., & Vilcassim, M. J. R. (2021). PM2.5 concentration and composition in subway systems in the northeastern United States. Environmental health perspectives, 129(2), 027001. https://doi.org/10.1289/EHP7202
Note how the authors who are studying chemical concentrations in the subway structure their paragraphs around the relevant content of the articles they are using in their paper. They begin with information on how many subway riders there are, then say where they got their number from. They say that number is likely to increase, then say where they got that assertion from, and so on.