This question was asked in 2018 on ResearchGate; the responses might be helpful until you get some to your question:

https://www.researchgate.net/post/Can_you_suggest_references_that_use_single_case_study_as_a_research_method_and_phenomenology_as_a_method_of_inquiry_in_one_study

These articles might help:

Larkin, M., Shaw, R., & Flowers, P. (2019). Multiperspectival designs and processes in interpretative phenomenological analysis research. Qualitative Research in Psychology, 16(2), 182-198.

https://www.researchgate.net/profile/Rachel_Shaw/publication/329079135_Multiperspectival_designs_and_processes_in_interpretative_phenomenological_analysis_research/links/5c37128492851c22a3691bd6/Multiperspectival-designs-and-processes-in-interpretative-phenomenological-analysis-research.pdf

Diefenbach, S., & Hassenzahl, M. (2019). Combining model-based analysis with phenomenological insight: A case study on hedonic product quality. Qualitative Psychology, 6(1), 3.

https://www.researchgate.net/profile/Sarah_Diefenbach/publication/315591239_Combining_Model-Based_Analysis_With_Phenomenological_Insight_A_Case_Study_on_Hedonic_Product_Quality/links/58f71517a6fdcc187f3a7d33/Combining-Model-Based-Analysis-With-Phenomenological-Insight-A-Case-Study-on-Hedonic-Product-Quality.pdf

Eatough, V., & Smith, J. A. (2008). Interpretative phenomenological analysis. The Sage handbook of qualitative research in psychology, 179, 194.

https://core.ac.uk/download/pdf/96658525.pdf

Good luck with this,

Mary

Hi Mary C R Wilson, thank you so much for this. Really helpful, wasn't aware that it had already been asked, and the references you sent are really great too. Will look into them!