Obviously right wing candidates either don't use email or have nothing interesting to say.
This does not match my experience at all. Most people I know of his generation use email heavily.
Macron is probably best defined as a neoliberal, a somewhat coarse-grained label which is nonetheless fairly well understood globally. Despite his previous party affiliation, he is not any flavor of socialist.
Globally, "left wing" and "right wing" would probably have little overlap: the left-wing Venezuelan leadership is authoritarian and pro-social services, the right-wing Le Pen is... authoritarian and pro-social services.
He is economically a bit more to the right. And socially a bit more to the left. He supports immigration. He is giving 18 years a culture pass and is spending more on education.