Conrad et al. (2022) experiment on phonological iconicity (sound symbolism)

[LinguList]

They have a strategy to test for sound symbolism by contrasting words with high/low valence and arousal. So they use norms/ratings for this study. Their stimuli stem apparently from a larger dataset, and their data lists German.

The data is on OSF: https://osf.io/gam9y/

The article is open access: https://www.sciencedirect.com/science/article/pii/S0010027722001706

It would be good to trace the earlier study from 2018 (https://psycnet.apa.org/doiLanding?doi=10.1037%2Fxge0000499) to see how much data they offer there.