Apple

You can’t go wrong with iTerm 2, it provides a lot more functionality than the default terminal. Many of my coworkers are diehard sublime users for a notepad++ alternative!

CodeRunner, Whisk and Sublime are pretty good alternatives to Notepad++. I've tried each and can say that the apps are great.
Insomnia is a great thing to use, too.
And the other apps I use have already been recommended, so I hope something will work for you too.
There are a lot of different apps, and it depends on your preferences. Also, there are different articles and blogs where you can read the info, sometimes reviews, and choose something you like and find useful. Here is one article https://setapp.com/how-to/how-to-recover-excel-file-on-mac I read it recently, and it provided me with some useful info about recovering files on Mac. There, you can also see some info about the app, which can help you to do it, and I think it's also a useful one.

Rectangle - for arranging windows
Warp Terminal - a souped up terminal
Maccy - clipboard manager
Homebrew - installing packages
Sublime - notepad++ equivalent
Insomnia - api request manager like Postman

My recommendations are going to be:

• Termius: A very nicely designed SSH & SFTP program
• Sip: A menubar app to grab colors from your screen in hexadecimal
• Amethyst: A Tiling Window Manager. You'll either love it or hate it, depending on how much you like keyboard shortcuts
• Codekit: An all-in-one preprocessor. Less practical for large projects, but it's no-nonsense setup is nice for small ones
• Arc Browser: A mac-exclusive Chromium based browser, built specifically to organize large amounts of tabs at once. It also provides excellent support for splitting the pane between multiple tabs and is very pretty
• I'll second the rec for iTerm 2. It's a very dependable terminal.