I literally provided a link to the 'Official DSSD Club', which has all the resources for the Deepsea you could want. You just need to read. If you like the DSSD, reading all this information and checking out all the reviews, pictures and gen comparisons should be enjoyable, and you'll learn a s#itload. Start on the newest page and work backwards.
Then, when you find a watch you like, reach out to TD and ask if it's available.