I've been to Lunettes pour Tous stores https://lunettespourtous.com/ in the past. It felt revolutionary, because you could walk in, get an eye test, and have your glasses made within 30 minutes at the same store, at a very reasonable price.
It looks like they deliver as well. Hard to describe their price range as they have a million options you can pick as part of the ordering process - easy to end up with something well under 100EUR though without picking all the cheapest options.