The video games that Humble Bundle sells mostly come as Steam keys, but HumbleBundle.com does not provide links to the Steam Store page for games. Even more annoyingly, the two websites sometimes use different names for the same games. In these lists, (nearly) every game title is a link to the corresponding Steam Store page.
These lists also show which games have official Linux versions (“Linux native”). Many Windows games can also run on Linux using Steam’s Proton subsytem. I use the crowd-sourced database at ProtonDB.com, which classifies each game as PLATINUM (it Just Works), GOLD, SILVER, BRONZE (crashes a lot), BORKED (not at all playable) or PENDING (no reports yet). Warning: I rarely update these ratings, but they can change over time, so check before relying on them.
This large (and growing!) document lists all the Humble Choice bundles (and the last few Humble Monthly bundles). Clicking on a line will show or hide the bundle information, except that clicking on the month-year part takes you to the bundle’s page on humblebundle.com (in another tab).