You are working in some of the subject areas that I considered as a hydrologist, but you wont find much on SWAT or HEC model examples in my researchgate papers, reports, etc., but you nonetheless might find some things useful. Most of my work was either actually measuring, or finding data and references within specific physiographic areas and applying to forest hydrology evaluations. I have been fortunate to collaborate with Dr.. Devendra Amatya on several occassions, and he is well published on SWAT applications and use, so you might look on his researchgate for examples, various citations, some of his collaborators, etc.
There are several modeling options in watershed modeling. It depends on the watershed type, data availability, scale and time steps, etc. SWAT, HSPF, are some choices. Below are some publications that use SWAT, HSPF, and simulation with stella