One of my favorite things about htop are some of the projects that have been created that are modeled after htop but focus on information other than system resources.
Cointop [0] is one of these projects that comes to mind.
intel_gpu_top helped me solve a mysterious performance issue on a MacBook after countless hours of fruitless investigation. Overheating and throttling was an issue but even after I fixed it the system would lag hard - instantly when I used the external 4k display, and after a while on the internal 1440p screen. Turns out cool-retro-term was maxing out the integrated Intel GPU which caused the entire system to stutter and lag.
Unfortunately both the MBP and my current XPS 15 are unable to drive cool-retro-term on a 4k display with the CPU integrated graphics, and they both overheat and throttle if I use the nvidia graphics card :/
It's a really cool terminal though: https://github.com/Swordfish90/cool-retro-term