Best way to get isk as a new player?
Fun and learning the game should be your goals, not slaving away for isk. Buy 500 plex from the EvE Online official website (or one of their few authorized resellers - off the top of my head Markeedragon gamecodes is one…Amazon might have stopped selling plex for some reason…) and sell it on the ingame market. That should be enough isk to last you quite some time as a new player.
Buy only the cheaper T1 ships, don’t spend on fancier ships or modules yet. Try different things out to get an idea of what you might like to do. Take lots of risks, lose many ships. You will learn valuable lessons beyond the price of ships. Ships are merely tools for you the player to have fun. Don’t get attached to them and don’t be afraid to lose them.
If you like trade, do that. If you like manufacturing, do that. If you like fighting other players, do that (and don’t listen to people who say you must wait “X” amount of time before getting into pvp - you can be involved in group pvp from literally day one. Of course a player is unlikely to take on a vet 1-versus-1 and win at first…in what game worth playing is that common?) You will quickly discover that many playerrs do several things at once…but don’t overwhelm yourself yet, do one thing at a time for awhile.
Join a group.
Oh, don’t be scared of that. 
- That would be seen by the community as a pretty ridiculous thing to do…not necessarily the blowing up of new players outside of newbie zones nor baiting anyone…but the using of the New Citizens Q&A section to do it.
- Don’t be afraid to lose ships anyway. You should lose some…hopefully many.