Eclecticism

Conceptual approach that draws upon multiple theories, styles, or ideas

Eclecticism is a conceptual approach that does not hold rigidly to a single paradigm or set of assumptions, but instead draws upon multiple theories, styles, or ideas to gain complementary insights into a subject, or applies different theories in particular cases. However, this is often without conventions or rules dictating how or which theories were combined.

This keyword could refer to multiple things. Here are some suggestions: