Reddit reviews The Expanse: Season Two [Blu-ray]

YMMV, but here in the US, at the time of this reply,
Amazon.com shows all 3 seasons Blu-rays in stock.

• https://www.amazon.com/Expanse-Season-3-Blu-ray/dp/B07CLRMK6D/
  
• https://www.amazon.com/Expanse-Season-2-Blu-ray/dp/B072BBQX5C/
  
• https://www.amazon.com/Expanse-Season-1-Blu-ray/dp/B01AHWLX24/
  

From what I can tell, none of the producers want you to watch it, or more accurately they want you to watch it on an increasingly outdated distribution platform.

1. You can watch it on the syfy channel or online via a physical cable service that includes a cable TV package.
   
   
2. Pay two dollars per episode via these services: amazon, google play, youtube, vudu, itunes. For a total of ~26$ for the entire season. Definitely worth it for a great series, but I'm assuming that you're poor, because I'm poor. And I refuse to pay 26$(more than the average DVD set) to buy a season of a TV show, that unlike a DVD set, wont even come with a ton of extra content for the price. Especially when I can get way more for way less with most streaming services. You can also just buy the DVD or blueray, https://www.amazon.com/dp/B072BBQX5C which costs only marginally more than streaming it, and has the added benefit of having a bunch of extras, and also will unnecessarily require you to physically store it in your house.
   
   
3. You can continue to wait for it to come out on streaming services, like netflix. Or for the companies that makes the series to realize that cable TV subscriber numbers have been dropping steadily and increasingly since 2012, and that to compete they will need a legitimate online only service.
   
   
4. You can steal it -- but if you do so, you're just increasing the chances that the series get canceled. And you're also ensuring that a product gets less money. Which means less cool special effects, fewer great actors sign on to the show, worse cinematography, etc etc in future episodes and seasons. And if selfishness doesn't sway you, it also means that all the great people who made the show, and wrote the books, get less money for their work.
   
   
5. Probably the best option right now, (assuming you like most people, have a Netflix account,) is to get the DVDs via netflix. The second season is available there, and hopefully you have a DVD/blueray player available.
   
   In the meantime, I'd suggest getting the books. The source material is excellent and the universe is masterfully crafted. They are basically Hollywood blockbusters in book form.

The US Amazon preorder for season 2 region-free blu-ray is here. Release date is July 18, 2017.

You can buy the physical copy for $20 instead, this way you will actually own it and won't have to worry about streaming. https://www.amazon.com/Expanse-Season-Two-Blu-ray/dp/B072BBQX5C/ref=sr_1_6?ie=UTF8&qid=1505728076&sr=8-6&keywords=the+expanse

Here:

https://www.amazon.com/Expanse-Season-Two-Shohreh-Aghdashloo/dp/B0713SB396/ref=sr_1_1?s=instant-video&ie=UTF8&qid=1504424380&sr=8-1&keywords=The+Expanse+season+2+dvd

https://www.amazon.com/Expanse-Season-Two-Blu-ray/dp/B072BBQX5C/ref=tmm_blu_swatch_0?_encoding=UTF8&qid=1504424380&sr=8-1

And :

https://www.reddit.com/r/TheExpanse/comments/6jfkh3/how_you_can_buy_expanse_season_2_on_amazon_from/