When you say “way to go” what other options are you willing to consider? Unless you can say what other options you have are missions the way to go. It can take 2-3 days to get back into it and into the right rhythm (until the memory of it all is fully refreshed).
Other options can be exploration with some of the new ships, but also ice mining currently pays pretty high followed by moon mining (now available also in high-sec), whereas asteroid ore is dead for now and the asteroid belts are pretty much void of players.
Then we have the new mining missions, where there is a whole guide about it.
We still have Incursions, which I haven’t done any lately, but I have also not seen any changes being mentioned. So I’m going to assume these pay as usual and are still better than L4 missions.
Then there are the events, which depending on the type, can produce high amounts of ISKs and also more than L4 missions.
Escalations in high-sec do still occasionally yield a pretty nice deadspace item or two, but I have no idea how consistent one can make ISKs with it.
And latest addition are Abyss sites.
The list goes on …