Which one is better tube tuner or Digital tuner?

McIntosh's own MR85 would be a good candidate for you.

Internet radio will give you stable reception vs. any tuner you can think of. It will not give you an excellent sound quality but weak reception less likely will. You can also have an amplified antenna for your tuner, but you can also face RFI in your tube preamp.

One is not necessarily better than another, so the same arguments about other types of tube vs digital equipment. What will be different, like for everything else, are your preferences for sound and the specs for the tuner to match your listening area, such as sensitivity, etc.

IMO - It would be best for you to describe any listening preferences for tube or digital gear, and then describe your listening environment. For example, urban, suburban, rural, and the stations you want to pick-up and how far away. And, how much do you want to spend?

I'm also seeing a decline in FM stations and rise of streaming stations...For better or for worse. Even though the sound quality is not very good right now with the streamers, this will surely improve. I own a Squeezebox Touch that I picked up for $249, and I have access to a world-supply of stations. The SBT is also a compact and network-based music server that can sound very good when a quality DAC is used with it.

I own a highly-customized McIntosh MR-71 Tuner that I love and that has given me much joy. However, I fear it will become a museum piece or a beautiful paperweight in the near future.

Both can be great but are only as good as your antenna and distance from stations you want to hear. My favorite tuner I ever owned was Luxman T117, its digital.