The galaxy has always been thinly populated due to the large number of populated systems, although player numbers have increased recently due to the carriers update. You will probably find players in and around the starter area and systems with engineers, especially Deciat, although as a new player you should be prepared to be ganked. You may want to get in touch with SirGanksalot: he provides tuition on how to avoid ganking. Also consider joining out squadron
https://inara.cz/squadron/5887/