Background:
Senior lady..only mobility issues...can walk 1+ mile ..no problem but then "slow"and standing in one place ( as in line) really make my legs hurt.
Been to NYC many times but not in last 10 years..then with Road Scholar ..great outfit..arranges everything..
Now my time frame does not fit their organization.
My ONLY interest is ART::.MOMA, MET. Frick, Brooklyn,Guggenheim ..I have been to these but long ago .
my proposed visit is my "last Hurrah" before legs go
completely...Or something else , after all am now 85!!
So need suggestions...

Unfortunately I don't know of any tours but will be interested to see if others are aware of any.
Going to museums is definitely a challenge if you aren't able to do a lot of standing and walking. My husband found the little portable stools that some museums offer very helpful when he was waiting for hip replacement surgery -- but then carrying these presents its own issues.

It looks as though the Metropolitan offers use of manual wheelchairs, but only on a first come first served basis, with an escort service if arrangements are made in advance.

Most of the museums seem to offer little other than access for people who regularly use wheelchairs and elevators.

Keeping up with a tour can sometimes be more exhausting than doing your own exploration. If you do opt to visit independently, here are a few quick suggestions. I'm sure others will have more for you!

In New York City, use taxis and busses. Do what you can to save steps.

At the Metropolitan Museum of Art, use the street level entrance to the left of the main entrance. Skip that outside stairway! Inside the handicapped entrance, you'll find a coat check, rest rooms, gift shop, ticket desk, and elevators.

Get the device for the audio tour. Don't walk around the exhibits and read labels to the point of exhaustion. Pace yourself, find a bench, listen to the audio, and survey the room. Be selective about when and where to stand!

Do online research on special exhibits, permanent collections and floor plans so you do not waste too many steps.

Take frequent breaks to restore yourself. We like the small cafe in the American wing at the Met. Central Park out the window and, indoors, sculpture and Tiffany glass make for a pleasant respite.

As you aware of the better known museums, may I suggest an alternative. Chelsea is filled with art galleries, although less after Hurricane Sandy. There are scores and scores within a few blocks of one another and some buildings have several. Google -Chelsea, NY art galleries and see if that appeals to you.

And if you can get a reservation at the Cookshop.

And the new Whitney should be on your list too.

Following through on IMD's suggestions I would add the galleries of SOHO. There are many
The Museum of the City of New York has an excellent and interesting collection on the upper floors that is often overlooked by those going art museum hopping.
If you like medieval art, you would like The Cloisters where you can see medieval art in a medieval setting. However, it is a pretty long ride uptown to get there.
Saving a favorite of mine for last, have you visited the Neue Galerie? It has a great collection of Austrian and German art of the 19th and 20th century including Klimt's iconic portrait of Adele Bloch-Bauer aka Lady in Gold and other of his works. It also has 2 of the best dining spots in the city (IMO) including one where you will feel that you are in a classical Viennese cafe.

You asked about a tour. Was that because you want to be with a group of like minded people? or because you wanted help with air, hotel, logistics getting around the city? or because of an arts program? If the last then most museums offer (usually free with admission) tours, lectures, concerts, other programs. The Met and the Frick have something almost every hour every day. You could piece something together with a different museum each day, relaxing lunch and people watching in the afternoon.

I love the Cloisters, but there could be a problem. If the elevator at the 190st station is out of order, it is the second deepest subway station and quit a climb.

Here is the on-line MTA status of elevators and escalators.

https://advisory.mtanyct.info/EEouta...?StationID=All

Personally, touring small art galleries wouldn't be the same thing at all as going to some of the best art museums in the US, like the Met. I imagine that isn't the goal, just to tour some small art gallery and see some unknown painter's work.

I don't know where you live, but where I live, there is a county Senior Activities office and they do tours like that. By definition, they know it will be older folks and they make all arrangements and help them as they need. I don't think they do any overnights, but since I live in DC, they can do a day trip to say Philadelphia for art (not sure about NYC). I also belong to the Smithsonian Associates program and they have such tours, including overnights, and I know that organization skews older so they know how to handle it.

For example, here is one of their 3-day art tours to Pittsburgh
https://smithsonianassociates.org/ti...-on-pittsburgh

So if you live on the East Coast, you might look into whether your city or county has some kind of organized senior activities which might include art tours.

But it sounds like something you might have to customize yourself, which I imagine will be expensive. But here are some names, you could inquire as to cost and logistics

Lauren A Kaplan Art Tours

For less expensive probably, there are websites where you can look for private guides, here is one example
https://www.toursbylocals.com/TBL/We...2.65.1.5.8.5.0

Now that tour says you can customize, so if you jsut want museums, that guide should be able to do it. That website in general lets you look for a private guide, you could try to find one. That website is licensed NY tour guides, I think. For example, this guy is a guide/driver, that could be what you want, especially if you mainly want the logistics handled to get you around.

https://www.toursbylocals.com/TBL/We...7.1.3.1.4.19.0