@Dimetrodonscantfly putting dead weight in front is probably the worst way to solve that problem. If it's pitching up you should just rely on trim or see if your main wings need to have symmetric airfoils. Dead weight will just tank the maneuverability and make the plane far heavier than it needs to be

Does anyone else have suggestions

Thanks @Himynameiswalrus

Things like 'plane picthes up-put dead weight on front'