There are multiple ways in which a discourse analysis can be applied. It is important to realize that the term discourse can be understood and applied in different ways. Some nice exampes in the field of environmental governance can be found in the Journal of Environmental Policy and Planning. A quick search on scholargoogle will give you an overview of the many papers and books that describe relevant methods.
If you could clarify your question and explain your research question we might be able to suggest relevant papers.
I agree with Raoul, the type of analysis you can run depends on your object of study. There are several papers (and books) of Johannes Angermüller that could be very useful for you since they present the various research traditions in discourse analysis, including approaches inspired by Foucault's work.
I think it depends on what the implications of Post-Structuralist theory are for your object of research. For example, I'm combining discourse analysis and interview-based research in a project on academic identity, but, as I'm drawing on post-Structuralist discourse theory (Foucault, Laclau and Mouffe, Critical Discourse Analysis etc.), one of my critical assumptions, following poststructuralism's 'decentering of the subject', and the idea that subjectivity is 'constituted in discourse', is that my participant's responses are not reliable indicators of any unified identity, or of any corresponding mental or social 'reality'. As such, I have had to accept that what post-Structuralist theory tells us about the subject, has serious implications for the reliability of the interview as a data collection 'instrument'. To this end, I have found the work of Potter and Wetherell on 'Interpretive Repertoires' immensely useful, as it permits one to look at the interview as the discursive co-construction of the researcher and participant, and the 'subjectivity' of each party as not a fixed 'social fact' but a situated 'accomplishment', while also analyzing the data for variability and contradiction (i.e. destabilized meaning), rather than 'consistency'.
Another good paper to look at is Derek Hook's 'Discourse, Knowledge, Materiality, History: Foucault and Discourse Analysis', where the author seeks to map out what a 'Foucauldian discursive analytic method may have looked like'.
you have to delimit your 'theoretical framework', choosing one or more (triangulation) figures of the post-struc. era.
you have to delimit your post-scope too, philosophy, psychology, etc. Otherwise, such studies and researches are always at the mercy of criticism on the ground of having no 'ground'.