Unironically get yourself into a good wormhole corp - always something fun to do and the money is solid, especially in C4-C5 holes but even C3s are decent. Explo, gas, PvE and sometimes PvP make you good money (oh these Prospects all had Syndicate gas scoops for some reason!) and basically anything you’re actively doing can generate content. I’m a singleboxer and still enjoy WH space way more than any other area in the game because of how unpredictable and fun it can be.