Traveling from Seville to Granada

It will be very difficult to see more than one place en route (and Ronda's the only option with a rail station) by public transportation. There is (generally infrequent) bus service to Arcos del la Frontera, Grazalema and Zahara de la Sierra in high season; I have no idea whether there are even fewer buses at this time of year. The infrequency of the bus links would make it difficult (or even impossible) to get from Seville to Granada by hopping from town to town. You can do Ronda by rail, but you will not have a lot of options in terms of the length of your stopover. I find it easier to research train schedules on the Deutsche Bahn website than on Renfe, but you'll need the latter to see fares.

It is entirely possible that buses Seville-Ronda and Ronda-Granada would be a better option, or perhaps it would work best with one rail leg and one bus leg. It depends on your preferred timing.

I do not know whether the Ronda rail station or bus station has luggage storage. Here's a 3-year-old thread from Trip Advisor. Try Googling luggage storage Ronda and see whether you can find something more recent.

If you hope to hit multiple towns along the way, I think you'll need either a retnal car or a private transfer.

You can use ViaMichelin.com to get an idea of point-to-point driving times, but keep in mind that they don't include stopping, getting lost (not an issue for a local driver, I would assume), looking for parking, or walking from the parking place to the historic area you want to explore. Ronda's not tiny. The other places most often mentioned are hill towns, which tends to make for slower sightseeing.

Thank you!