Bigrock is one of my fav space to buy .com for $1 only. Because Godaddy require different credit card info, whenever you buy another domain with different email address. Also Godaddy many times does not provide net banking as payout option if you've added $0.99 coupon code.
But if you just looking for sites like that, then pradeep already share there. I don't think there are many likes that. Google Domain and Gandi does not run any promotion offers, but they are best registrar company for long term.