Unfortunately, Google has killed their Cloud Print service (like many of their projects) at the end of 2020. Other products like directprint.io and PaperCut are possible alternatives. But see if your printer is still compatible by going into your Chromebook's advanced settings, click "printers" under "printing", and check if the printer can be added. Both devices must be on the same WiFi network in your home. If things aren't working out wirelessly, use a USB cable to connect to the printer.