Search Engines (duckduckgo is mentioned a lot, why?) Operating Systems Cloud Storage Email Providers Podcasts Video/Music Services (Youtube, Paid services, etc) Environment Specific advice for Android, iOS, and any others.
Duckduckgo is mentioned because it does not log what you search for so every time you return its like you are a first time visitor
Operating systems: pretty much any linux will do. I suggest Ubuntu
cloud storage: none. Cloud = someone else’s computer. Get an external SSD.
Email: ProtonMail or Tutanota
Podcasts: platform dependent, but AntennaPod for Android