It all depends on what you do with your car. For the occasional trip to the nearby café any tyre is sufficient. In Germany and other countries they have to be V rated or the car won't pass the (biennial) check. If you wish to use the car as intended better go for Michelin XWX, Pirelli CN36, Dunlop Sport Classic, Vredestein Sprint Classic, maybe Avon Turbospeed(?). Michelin, Pirelli and Avon are only avaliable in 205/70VR14, Dunlop and Vredestein also in 195/70VR14. Some people report varying quality depending on manufacturing lots, at least for Michelin and Vredestein.
Interestingly, 205 XWX are much higher than 195. A friend keeps an old set of 195 and put both sizes on two otherwise identical CSL. Ride height difference should have been 7 mm. To our surprise, it was 12-15 mm. Quite a few E3-Club friends run on 205/70x14, their cars all stand higher than mine on 195/70x14. Also rolling resistance is higher for 205 than for 195. On the other hand, the wider tyres provide a little more grip on hard cornering.
From what I remember from our visit to Bicester in 2019 British county roads tend to be pretty rough. The most durable tyres might be the best choice. Which should rule out the Avon, that is said to be totaled after 30000 km.
My E3 sits on Dunlop since spring 2019, they have covered 22000 km in four (half) years. For 2023 the salt season is not over in central Germany, so no records yet. As of today roadholding especially in the rain and on winding roads is exceptional. Downside: since 2019 prices for the Dunlop have been rising almost every six months. Growing reputation?
Advice on tyres is always difficult, everyone feels comfortable with different characteristics. Ask ten E3/E9 drivers and probably get 12-13 answers.