What do you want it to look like? Can you show examples of the result you’re aiming for?
As a ‘simple’ way, I’d use a Text brushtip with Rotation controlled by Drawing Angle snapping to an elliptical (circular) painting assistant:
That simply prints text along the stroke path.
Here is the brush editor section:
The Text Tool is being improved and this is presented and discussed in this topic:
Text Tool Thread
I don’t know if it has text along a path facilities and I’m not sure when it will be available but probably in version 5.2 when it arrives.
GIMP has its Text Along Path capability and you can create a vector path in krita, pass it over to GIMP, place text (in raster form) along that path then pass the .png text image back to GIMP. It’s bit tedious but not difficult.
As suggested by @Michelist, Inkscape probably has better facilities for general text along path work.