ESIM Or SIM card

We will be staying in Japan for 35 days and want to buy E/SIM Card for data use only. I hope you can share your experience:

1) Any recommendations on buying ESIM / SIM from Amazon in Canada, I looked at the customers�f review and they don�ft seem very promising;

2) is there any other reliable providers that we can buy either SIM or ESIM on line?;

3) if we buy it in NRT after we arrived, would it be fairly expensive?

Thank you for your help.

You can refer to the below comparison tables. All providers are reliable from our experience and other travelers.

eSIM:
https://visitjapan-vegetarian.com/should-i-get-a-japan-esim-card-and-w...

SIM:
https://visitjapan-vegetarian.com/should-i-get-a-japan-sim-card-and-wh...

Since you have 35 days, you can just get two SIM or eSIM.