Society Central

I realize that this is a silly thing to ask but I told my client I would see if it exists. I don't do many vacation bookings other than air and an occasional hotel and/or transfer. I have a client that rented a house in Lake Como for 4 months (not thru me). He doesn't want to set up any touring or sightseeing in advance but he does want to do a lot of little trips throughout the region during his stay. He will also need car transfers from time to time while he is in Europe. It won't really be convenient for him to constantly reach out to me every time he wants to do something. I know it's unlikely I'll make any money on this but he's a good client and I'd like to try and help him. He has asked me if I know of a concierge service that he can work with while he is there. Normally, he would go with the concierge at the hotel but since it is a home rental, that is not available to him. Does anyone have any ideas on a service he could perhaps subscribe to or a DMC there that would be willing to work directly with a client (maybe I could cut a deal with them?) . I know it's a shot in the dark.....I just thought I'd put it out there. Thank you in advance for any suggestions you may have.