Honest price for an apartment in Tokyo( 1LDK, 2K or 2DK)

What is the average price for an apartment in Tokyo, let's say about 40-50 min from Sangenjaya Station? Size 1LDK, 2K or 2DK. Given that I need the apartment for the second week of January, I am a foreigner.

What is your suggestion for apartment hunting, I guess? Work with this foreign friendly real estate companies that overcharge or go to Tokyo, get an Airbnb for a couple of weeks, and look for an apartment with a real estate company there?

The commuting is by train. Clarification on this.

Thoughts?

by Lucky_pervert