Airbnb recommendation

is there any Airbnb recommendation for Tokyo, Osaka, Sapporo, Kyoto?

Too vague question to answer. Offer up some details of requirements.

Sorry for making it unclear. I want an airbnb with towel, AC, heater, and wifi

For 16 persons and beach view and 30 minutes out of city?

What kind of accommodation are you looking for?
Hotel, inn, or maybe private house?

Regarding lodgment at a private house
(called commonly as minpaku in Japanese),
under the national regulation since the 15th of June 2018,
a businessperson cannot offer lodgment for more than 180 days in a year.
That means a minpaku property recommended by someone may be unavailable for the night when you hope to stay.

Regrettably it seems there are dishonest persons
who pretend to have a license for running a lodgment business
and maneuver to earn money.
Entries with a false license number
have been found on the website of AirBnb;
in such cases, that lodgment business may be unlawfully run.
(Lodgment agencies like AirBnb are not legally responsible for such a wrong entry unless they can notice it.)

You had better confirm, at least,
that a host gives you a true postal code (in the 000-0000 form).
On Google Maps,
you can locate a place in Japan
with a true postal code for the district and the name of the prefecture.