Methods articles
Methods articles may review, synthesize, and evaluate established methodology or describe and validate emerging methodologies.
A good Methods article
describes a new methodology,
provides a strong validation and (if applicable) a sensitivity analysis of the new methodology,
compares the new approach with existing methodologies
to point out strengths and limitations of the new methodology, such as when to switch to the new methodology and when to continue using existing methodologies
Goswami, A., Watanabe, A., Felice, R. N., Bardua, C., Fabre, A. C., & Polly, P. D. (2019). High-density morphometric analysis of shape and integration: the good, the bad, and the not-really-a-problem. Integrative and Comparative biology, 59(3), 669-683. https://doi.org/10.1093/icb/icz120
[more examples to be added]