Uses

Here are a few things that make my life easier when developing:

My desk, backlit by Philips Hue lights in purple and pink. Two monitors display a Mac screensaver. A Shure MV7 microphone is positioned to the left of the monitors. Behind the monitors, two white speakers are directed at the user sitting in front of the monitors. Directly in front of the monitors is a wireless keyboard and a wireless mouse.

Physical

Two Dell Ultrasharp U2417H 24 inch monitors
AmazonBasics Dual Monitor Stand
Apple Wireless Keyboard
Tecknet Wireless Mouse
13-inch Space Gray MacBook Pro
Kanto YU2 Powered Desktop Speakers
Shure MV7 microphone
CalDigit TS3 Plus Thunderbolt 3 Dock
Anker charging stand
Anker PowerWave charging pad

Virtual

PHPStorm - PHPStorm is used mainly for Magento 2 development. You can't beat its powerful refactoring, class completion, and code navigation for larger projects.
VS Code - For smaller projects, VS Code is my go-to. I primarily use VS Code for Laravel development.
TablePlus - TablePlus is a great database GUI. I picked it up initially because it was the only Mac database manager that could handle MS SQL, which I need at work sometimes. It quickly became my favorite database tool, however.
Laravel Valet - You can't beat Laravel Valet for quickly getting a development environment up to speed. It configures my mac to run Nginx in the background, and uses DnsMasq to proxy all requests to a "pretty" local URL.
Docker - I use Docker to manage my database, Elasticsearch, Mailhog, Redis and RabbitMQ instances. I use Tighten's Takeout CLI tool to spin up these Docker containers.
Insomnia - I previously used Postman for API design, but Insomnia is quickly becoming my favorite API design tool. I use it for planning APIs, as well as making calls to existing APIs for testing and debugging.
iTerm - I use iTerm as my terminal. I'm not an iTerm power user by any means, but I like the fact that it has true color support; I like for all of my applications to have the same theme (Palenight, as of this writing)
CleanShot X - CleanShot X is a screenshot program that takes the place of the default Mac screenshot program. It makes screenshots a little nicer; adding a Mac-centric background around windows that are being screenshot, and allows editing the screenshot after snapping a pic.
Spectacle - Spectacle is a window manager for Mac. I have hotkeys configured to quickly split two windows, make my editor full screen, etc.
Bartender - Bartender is used to keep my Mac's toolbar tidy
1Password - 1Password is my password manager of choice.
Sip - Sip is used to eyedrop colors from webpages, desktop applications, etc.
Spotify - I use Spotify to listen to music and maintain my sanity while working.