There is no genuine workload fix that doesn't cost money, apart from things that will either negatively impact students or be really unpopular with parents.
Things that would be free and would reduce my workload include:
-Never marking anything ever including mocks (clearly this would negatively impact students, though)
-Teaching solely from pre-prepared resources with no adaptation to my classes (would be absolutely crap).
-No reports at all (I actually think this would have minimal impact, reduce stress 3 times a year etc. But parents would hate it).
-No parents evenings (ditto).
-No running of "support sessions"/after school revision (would be massively unpopular with students and parents, I actually wouldn't mind doing it if my workload was otherwise reasonable).
-Not dealing with pastoral/safeguarding issues (clearly this isn't acceptable).
BUT
Actually, none of this solves the issue that in my last job I was getting to the point where I couldn't live in the town, and easily afford my rent/bills and a tiny bit of a social life. Unless you make the job hugely less stressful, which I genuinely believe is impossible, no-one is going to put up with that.
I don't actually want to do a bad job as a teacher. I'd like a bit more PPA and class sizes that feel reasonable (20 would be ideal, I think, but <30 certainly). But most of all, I want pay that enables me to live comfortably and actually enjoy myself a bit in the holidays.