tldr: I am looking for recommendations for a basic website for my parents. GOTO question;

Pre-Story:
My parents have a small (offline) business. They have a website to give some general information and list their weekly offers.
When I felt that what has come out of the website-building tool (you know, clicky clicky stuff) looked a bit too early 2000's and is a total ripoff for what you get (almost 20€ per month), I created something with Google Sites for them. Feel free to roast me, but web development is not my field and now it looks much more modern, is mobile friendly and does what it is supposed to do. Weekly offers are edited in a google sheets file, which is embedded in the website. Not great, but this way my mom doesn't have to deal with editing a tables on the page - trust me, it won't look good. This also meant they could downgrade the hosting package to discard the clicky-tool and just the domain (maybe 1€ per month). The website itself is hosted for free by Google.

Some time ago GDPR became a thing and then I was tasked to have a look at it. (side note: I don't want to rant about being responsible for it, that's fine. My parents don't really ask me to do a lot for them.) You can't enter any data on the website, it's just very basic stuff and data protection wise there's just the "usual" stuff (cookies, embedded tools, logs). I added another site with a halfway complete privacy policy. Regarding the whole cookie issue (do not enforce unnecessary cookies) I couldn't find an easy solution. It's not 100%, but what can you really expect from a small business like this? I've seen worse.

Now to the question:
Can you recommend a good alternative to the current solution (Google Sites)?
It should be cheap (<3€/month incl. domain) and my parents should be able to make some basic changes (just text in predefined locations). I am not afraid to get my hands dirty - I can deal with some HTML, CSS, JS - but I don't want to sink a lot of time into this. No need for analytics or the like. Maybe a newsletter would be cool (with the weekly offers), but that's just a random thought of mine and definitely not necessary.

Thanks for reading :)