Summarize the following:
Ctrl+⇧ Shift+T (Windows) or ⌘ Command+⇧ Shift+T (Mac) to quickly reopen a closed tab. This shortcut will open the last tab that you closed.  You can also right-click at the top of the Chrome window and select "Reopen closed tab". Continue using this command to keep opening recent tabs in the order they were closed. This will open a menu listing all of your recently-closed tabs. If you had multiple tabs open and closed them all at once, you can reopen all of them at once by clicking the "# Tabs" option. If you work with lots of tabs, you may find a tab manager and effective way to organize and keep track of all your open and closed tabs. There are several popular tab managers available for free from the Chrome Web Store:  Tab Manager Tabman Tabs Manager Tabs Outliner
Press . Click the Chrome Menu button (☰) and select "Recent Tabs". Download a tab manager extension.