What would you like to see added in fMRIPrep?

I was reading Jeganathan et al. (preprint), and it seems like the onavg surface space would be preferable to fsaverage or fsLR in some (all?) situations, but the only surface spaces allowed for CIFTIs in fMRIPrep are fsLR-32k and fsLR-59k. I was wondering if it would be possible for fMRIPrep to add other CIFTI options.

Perhaps --cifti-output could be merged into --output-spaces, and the different CIFTI template combinations could be given unique identifiers there?

EDIT: Or maybe the output space string could be expanded to allow both a surface template+density and a volumetric template+resolution?

Do you have any interest in helping implement the feature?

Yes

Additional information / screenshots

No response