What are /r/stm32's favorite Products & Services?

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I am also fresh to stm32. I have watched a bunch of tutorials on YouTube and Udemy. Coming from higher level programming, I used this book to fill in gaps where needed. It's a little wordy but a quick read.

https://www.amazon.com/Programming-STM32-Getting-Started-Nucleo-ebook/dp/B07B6TY9Z9