If all the intervening cells have data then as per many answers it's as simple:
⌘ ↓ (Command + Down arrow) = go to bottom-most cell in contiguous data range
But as you may have found it doesn't work if you have gaps in your data. The best solution I've found is clunky, needs three steps and uses all the arrows except down, but it gets the ...
None of the extensions worked for me so I wrote my own called Evercuts. It's really pretty simple but it does most of what I need. (FYI its only available for chrome)
Copy Note Internal Link
Open note in new tab
Open note in new window
Navigate the notes up/down
The above shortcuts are configurable via chrome://...