Arduino Micro-Shields/Modules - Add-on Breakout Boards

Hello!

I am looking for several breakout boards / electronics which I can simply add-on/click-on my Proto Shields without soldering. This helps to build rapidly my own Shield with several functions. Ideas I could find until now are:

Not all systems are ideal for building Arduino Shields, but it's often much easier to use such a Module or Mini Shield instead of soldering breakout boards. I'm not interesting in a discussion if this idea is good or not.

I only want to ask if someone knows other collections of snap-on Mini/Micro Boards/Modules/Shields?

Thanks!
Manfred