I'd say just go into a lot of shops with someone else who's taste you think is good and try find something that way. You need to try glasses on to work out if they suit your face ordering online isn't a great idea. If you're eyesight is shit it helps to have a second person to look at them. Plus if you wear them every day then you're going to be stuck with something for a long time if you don't like it.
Think the style coming in is more rounded lenses like the 90's. The rectangular ones like the pic you posted are the safe sort of option assuming you don't go for really thick ones.