In the quest to apply colemak-vim's ergonomicness everywhere, I started using Vimium, a so-far pretty powerful chrome extension.
Of course, being vimlike is only half the battle; to create a custom shortcut config, go to Advanced Options. My own configuration ended up looking like this:
A lot of emphasis was put on one-handed navigation. The rest is an amalgamation of chrome and vimlike positions. z "undos" tabs closing, while c enacts copy-related commands.
One notable lack is of navigation to the nth tab, but that's less necessary considering the fast left/right navigation and the tab search (v).
Characters used for link hints: hdvkwuyarstneiof
[Note: Beforehand, try "Use the link's name and numbers for link hint filtering". It's nice, and enjoyable in that it allows you to start typing right away, but its effectiveness is dependent on the quality of the link titles. Using it with "numbers" NEIOKHLUY (i.e. the capital letters opposite shift) allows you to finish your selection more easily than using actual numbers.]
First, this is the fewest number of letters to ensure that links are represented as digraphs, rather than trigraphs, in the pages I visit. YMMV.
As for the ordering, it's a little weird, since I don't really understand their algorithm yet, but from my experimentation:
The first and last letters are used the least to start off a digraph.
Otherwise, the latter letters are used more
Edit: Added a few commands, changed the "follow link" to reflect its overwhelming usage.
Due to the lack of use of left/right, made them into shift commands, replacing with the much more common pgup/pgdown, and allowing for back/forward to be reined in.
After trying it out for a while, I'd say the "follow link" commands can be good practice, since it involves recognizing and typing digraphs very quickly.