High Flow Pumps of either flooded suction or self-priming types.
For the latter your are best to review the Trash pumps category.
High Flow Centrifugal pumps come in electric motor, engine drive
or frame mount pedestal drive configurations. Materials of
construction range from Cast Iron, 316 Stainless Steel, Bronze and
Thermoplastics. Pump types include mechanical shaft seal, Packed
and Magnetic Drive.