Sit outside Jita and shoot anything yellow. You’ll get tons of kills.
Seriously though, I sit outside Jita and update my hundreds of orders and if somebody screws up and docks/undocks at Jita 4-4 station, I try to kill them. I use an Assault Cruiser w/arty and sensor boosters so I can cover both sides of the station and fast-lock smaller ships. If anyone engages me, I hit the damage controls and dock up. Total wussy move but it’s something to do while trading, which is my main source of isk. I’m not actually trying to fight and this is probably the least-skilled way to solo pvp.