string-inflection VS avy

The other answer is good, but here's a possibly faster one: use string-inflection. I have string-inflection-all-cycle bound to C-c i. Advantage is that you can get "ALLCAPS" or "Capitalized" by just repeating string-inflection-all-cycle. (I actually do what the docs suggest and customize it according to major mode, but that's a detail.)

What I'm looking for is something like AceJump for IntelliJ IDEs or avy for Emacs. These tools let you navigate to some part of the visible text with just a few keystrokes. Here's the behavior I would like in Obsidian, copied from AceJump's page:

For my emacs friends, here's a wonderful package that provides the same functionality: https://github.com/abo-abo/avy

And, if you're interested in some historical context for this "type characters and jump to point" functionality, the Canon Cat: https://youtu.be/o_TlE_U_X3c

Personally I've learned to do things the "Emacs way" and got used to its killing behavior. For multi-line stuff I would mark the region and then use navigation commands to get the point where I want it. For more complex scenarios I use either C-s/C-r or just use avy to get the point where it needs to be. For single line stuff I think M-z works well. Maybe this package could be useful to you as well? Just some ideas, I think there are actually many options here (including going over to evil ;) and it depends on your preferences and needs.

I make extensive use of avy for these kinds of situations.

Avy (avy-move-line) can do it very nicely and interactively for you, see this video.

It sounds like avy is what you're looking for?

Perhaps avy. I would use the commandavy-goto-char-2 then type N a and the corresponding jump key (if it appears). avy-goto-subword-1 is a bit more niche but might also work well.

I'm jumping around on the screen using -> https://github.com/abo-abo/avy#avy-goto-char

This UX does not break my flow (it doesn't require focus/conscious thought):

  1. Press  +  while looking at the place I want to jump to

I installed a package called avy which can do anything I have no issues whatsoever. If you're interested here is my very simple config. There are several options, I like the one with the timer.