Beam Abilities hitbox

What hitbox method would be optimal for ‘beam’ type abilities (e.g. Kamehameha, Laser)?

So far i have GetPartsInBoundBox, what do you recommend?

It also has to be multi hitting, meaning hitting more than one players caught up in the beam.

For more precision, I would recommend using :GetPartsInPart and using a cylinder. Using a box for a cylinder would make the hitbox seem weird to players.

Whatever you choose to use, using the :GetPartsIn() functions seem best for multi-hitting.