IMHO - I suggest that you attempt to get matching treads. The difference in looks, over attaching stair bullnose, I think, is much nicer.
You could go to the contractor or supplier that you are getting the hard wood flooring from. You should be able to get matching stair treads.
If that doesn't work, take a few samples of the wood flooring, go to a flooring supplier and try to order matching treads thru them.
Example: This is a set of stairs we installed along with the flooring. The flooring was a cinnamon cherry stain. The treads are cherry, and awaiting their stain and finish work..along with railings. Hopefully, you can get an idea (from the pic) of the nicer look that a tread has, over hardwood and bullnose:
With the railings installed (tho, dusty from drywall and still unstained and unfinished):