You can watch Lock-Up / Lockup Season 2 on Pluto TV for free with ads , and you can also buy it on Amazon Video.

If you meant the broader Lockup series, availability changes by region, but the same source currently lists no streaming option for Season 2 in the U.S. outside those choices.

Options

Option| Availability
---|---
Pluto TV| Free with ads 1
Amazon Video| Buy/download 1

A lot of older listing pages and fan posts mention past availability on services like Netflix or Peacock, but the current listing I found points to Pluto TV and Amazon Video as the live options right now.

Note

Because streaming rights shift often, the exact catalog can differ by country, so the best answer may depend on your region.