Adopting incremental steps in teaching resonance structures is beneficial. Begin with simple molecules that exhibit clear resonance, such as benzene, before moving on to more complex examples.

Yeah, "resonance structure" is basically code for "I have two ideas of how this should look and they are both wrong". It is also possible to have what BadAndy described, where there are multiple ...

Chemists in Japan have created intertwined molecules, including a trefoil knot and interlocked rings known as catenanes, made up entirely of benzene rings (Science 2019, DOI: 10.1126/science.aav5021).

Article citations More>> R. Heyrovska, “Atomic Structures of Graphene, Benzene and Methane with Bond Lengths as Sums of the Single, Double and Resonance Bond Radii of Carbon,” General Physics, 2008.

Heyrovska, R. (2008) Atomic Structures of Graphene, Benzene and Methane with Bond Lengths as Sums of the Single, Double and Resonance Bond Radii of Carbon.