I'm buying a vcc that works on google cloud voucher and free trial. pm me the price.
Another thing you could do is try E-coin.io , they give both physical and virtual card . Virtual card was free before but now it costs 3$ .
You can deposit Bitcoin then load the card with $ and try to verify your Google Cloud account . (10$ min deposit) , I my self tried it on PayPal and it worked great and I got it verified so I assume it should work without issues on Google cloud , you still can ask them via Support , they answer fast