Two options are to either continue studying Leetcode questions until you just know how to answer Leetcode questions, or apply at jobs with a more sane technical screening process.
They do exist: I just talked to a friend who was expecting an offer from a large company. He said: "They didn't ask me a single whiteboard question, they just sat down and talked to me about programming. It was weird."
I know this dead horse has been beaten a lot already, but isn't it funny how so many companies evaluate people for a job by asking them to answer questions that actually doing that job will not make you signifcantly better at answering?