> For domains i find Openprovider.eu is pretty cheap imo

A quick check of their pricing refutes your claim. They do list cheap domains, but it's due to promotional discounts on the first registration that they follow by charging a huge markup in renewal fees.

Case in point, I have a few domains that I have been paying namecheap peanuts to maintain, and the same domains are listed in openprovider.eu to cost between 5 and 10x as much to renew.