Ourense is on the Sanabrés route and is a major starting point for those wanting to walk the last 100km into SDC to get a Compostela, a very nice alternative to the route from Sarria. It is lovely with a cathedral (internal paintwork restoration I understand is very good, although I have not seen it) and the original Roman spa in the centre of town - next to a modern spa open to the public. It may currently be closed for renovations but there are many hot spas, accessible from the free little tourist train that trundles around town.
I loved the Sanabrés and it has the nicest route into Santiago of all those I have walked.
To plan your days and kilometres,
this website is very useful. Put in your starting point (Ourense) and go from there.
Lots of information, blogs and photos in
this section of the forum. I stayed mainly in albergues - some new very good ones (it was in 2018). Can't help with information about baggage carriers, although there were plenty of taxi advertisements so I assume it would not be a problem.