Florence/Tuscany area Vineyard Recs

Going to try our hand at international travel this year with a trip to Italy early October. Looking at an itinerary of Rome - Florence - Venice. We've got a lot of the trip ironed out (thanks to the TD Travel Board), but one thing we are having trouble pinning down is the best way in which to do a day trip to some of the vineyards in the Tuscany region.

I've spent some time sorting through some of the old threads on here looking for ideas, but having a hard time finding consensus on the way of doing it. My wife and I are going for our anniversary, open to any recs. Looking to make a day of it. Is it better to book direct with a vineyard and find a way to organize travel? Anyone had any luck with a specific tour group that organizes the trip and provides transportation? Preferably small group. we don't want to spend all day travelling on a bus. 1 or 2 spots would be plenty. seen some good talk about pairing it with cooking class or horse back riding.

first timers here so forgive any ignorance! Appreciate any and all advice you all may have!