Fallback Lawn Mower Suggestion

Hi;
If the used 21" Kohler engine Toro I bought for $100 continues to disappoint, I ask this: Any decent mower, self-propelled, 21-22", Honda engine or a US made Briggs. Mulching and side discharge. No bagging needed.
Preferably new. Preferably dependable.
Are they out there?
thanks!