If you want a Chrome extension that lets you house a bunch of productivity apps in one place, Manganum is a good choice. The extension gathers a number of apps like Gmail, Google Calendar, Google Drive and Todoist into a sidebar where you can keep track of your tasks, calendar appointments and notes. It also offers soft notifications for upcoming calendar events and integration with Zoom, Google Meet and Microsoft Teams.
Another contender is GPT Workspace, which brings ChatGPT and Gemini to Google Workspace. It automates tasks on Google Sheets, Docs, Slides, Gmail and Google Drive, for example categorizing data, summarizing documents and generating content. It's well reviewed and offers a free plan, so you can try it out without paying anything or setting it up.
If you want a broader integration and team collaboration, check out Muddy. The service combines apps, chat and AI into a shared workspace, with a focus on prioritizing and rendering tabs so you can focus on the most important work. With features like Infinite Rewind, Universal Commenting and Real-time Intelligence, it integrates with Chrome extensions and works on multiple devices for team collaboration and productivity.
Last, Raycast offers an extensible launcher that brings a lot of tools and services into one interface. It's got AI abilities for web searches and automating tasks, along with features like quicklinks, hotkeys and window management. The service is designed to help you get more done without having to launch lots of separate apps.