any suggestions for a massage in either Rome,Siena,Florence or at a hot springs
Will you have a car?
no but a driver between the cities and the hot springs
In Florence these are probably the top two. They are in the city center, therefore they are probably walking distance from wherever you are staying.
https://www.soulspace.it/en/
https://www.lungarnocollection.com/white-iris-spa/
For thermal spa resorts you may have to travel out of town.
This one is the closest (Terme di Firenze)
https://www.aquathermae.net/?lang=en_us
The city of Montecatini Terme has many choices of course, but it's about 35 miles away.
https://www.tripadvisor.com/Attractions-g194830-Activities-c40-Montecatini_Terme_Province_of_Pistoia_Tuscany.html