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You have two options:

1. Magma block: it's found in the nether or in ocean ravine, and when placed underwater creates a bubble stream that pulls you down.

2. Soul sand: it's found in the nether, and when placed underwater creates a lifting bubble stream.

side note, all block of water should be source block or bubble won't be created

You have two options:

1. Magma block: it's found in the nether or in ocean ravine, and when placed underwater creates a bubble stream that pulls you down.

2. Soul sand: it's found in the nether, and when placed underwater creates a lifting bubble stream.

Also, all blocks in your column must be source blocks, or the column will not work.

You have two options:

1. Magma block: it's found in the nether or in ocean ravine, and when placed underwater creates a bubble stream that pulls you down.

2. Soul sand: it's found in the nether, and when placed underwater creates a lifting bubble stream.

You have two options:

1. Magma block: it's found in the nether or in ocean ravine, and when placed underwater creates a bubble stream that pulls you down.

2. Soul sand: it's found in the nether, and when placed underwater creates a lifting bubble stream.

side note, all block of water should be source block or bubble won't be created

You have two option :

1. Magma block

it's found in the nether or in ocean ravine, and when place under water will create a bubble stream that push you down

2. soul sand

it's found in the nether, placing soul sand under water will create a lifting bubble stream.

You have two options:

1. Magma block: it's found in the nether or in ocean ravine, and when placed underwater creates a bubble stream that pulls you down.

2. Soul sand: it's found in the nether, and when placed underwater creates a lifting bubble stream.