I don't like Spotlight and I disable it in favour our Alfred. I use the powerpack which comes in with a lot of features.
Checkout their website and there are several articles on how you can use it online.Adguard plugin on Safari and uBlock on Chrome to block annoying ads
Choosy. This is paid app and costs 10$ but worth every penny since I use several rules to switch between Safari and Chrome automatically.
Spectatcle for window management. I've mapped several shortcuts on my Mouse (MX Master) to achieve the perfec window management that I need.
Copyclip Although Afred does come with Clipboard history, I use this handy tool in the menu bar to quickly check my clipboard history
Amphetamine Prevents your mac from going to sleep
Hidden Bar Menu bar becomes cluttered and I use this app to show the menu items that I want.
Logi Options+ I use an MX Master mouse along with MX Brio webcam, this software allows me to customise it as necessary
1Password I've been using 1Password as the password manager of choice since 2017