ALG Akula works well and retains a little bit of the slant brake aesthetic while adding some sideways venting; unfortunately it looks to be out of production.
Edit: It is fashionable now to hate muzzle brakes, I think it depends on your use case. For indoors shooting, classes, or other events where you are going to be on a fixed firing line then I can see it being annoying and detracting from the overall experience. For LARPing with friends, get friends who are comfortable with discomfort (if you think muzzle brakes are annoying, try taking fire.) However if you want to minimize signature, then the muzzle brake is not ideal. Dust, muzzle flash, and noise are far worse than a flash hider. Then again, AKs are built from the factory with brakes, so….They also absolutely help with both vertical and rearward recoil force.
Edit 2: Just get one of each - it’s an AK, you can swap out devices super easy by pressing in the detent pin and unscrewing.