If you're in the EU, take a look at https://www.inwx.com/en — I'm a client for the last 12 (!) years and they're still doing the same: Just. Fricking. Domains. Prices are retail + margin (that's why they mostly look weird), always one of the cheapest, and _if_ you can buy a TLD, you can buy it through them (last I heard was they were working on North Korea).

Interface is from the 90s, no BS, full access to DNS config and transfers, no upsells, just hardcore neckbeard admin stuff.

I like.