Are there contacts available for those with astigmatism who also wear bifocals?

Yes. Look for multifocal toric contact lenses.
Multifocals, torics. Multifocal, or bifocal contact lenses can decrease the need for reading glasses. Toric lenses correct for astigmatism. Multifocal toric contacts can provide improved distance and reading vision in those with astigmatism and presbyopia (the need for reading glasses).