Should I quit this job or find a new one while in it?

After working at this company for almost 1.3 years, im starting to question myself if I really took the job out of desparation or actually wanted it. I am in a rotational program where we get to be in 3-4 different teams for 6 months each. On paper this sounds like an amazing program, except I’ve learnt nothing from the program itself, but more on my own time. My first “rotation” can be summed up as: Toxic, two - faced, work environment. Yea, thats exactly what the manager himself was. We had weekly 1 on 1s where he just uses this time to bad mouth about everyone else in the team. He would also not invite certain teammates on our team to events because he is picking on them. Once they leave, he picks another target. So far everyone that I was in the team with had all left, except for one guy that is his “loyal dog”, but in reality he also hates my manager’s guts. The second “rotation” is even bigger of a joke. Not only was the manager right up my neck, he also made sure that none of us is taking too long of a vacation at any point in time. The funnier thing is that within 2 months of me joining, our team had a restructure and he quit immediately. Everyday after that I ended up working remotely since there was always no space in the office. Third rotation started off amazing, but once a “restructure” happened again, our whole team crumbled and the smartest guy in our team left because he really did not like how the department was doing things. (He was also the only person I got to learn anything from) Unfortunately, I am still stuck in this team, with a team lead with no direction or intelligence and micromanages me until my task is done. I am debating if i should quit now without an alternative or I should wait till I’ve 100% found a next job. Thoughts?