If you want to access any .onion link through Google Chrome on Android just follow these steps carefully, and its easy. RECOMMENDED (USE VPN FOR SAFETY)
Step 1. Install Orbot App from Play Store.
Step 2. Open the app and go to Disabled VPN and click settings icon right next to it.
Step 3. Find Chrome app and select it then go back.
Step 4. Wait till it connects and then open Chrome app from Orbot.
Step 5. Now you can open any .onion link in Google Chrome.