Local talk to another local talk mac is a good option albeit slow.

Another option is an external SCSI drive. I have an external drive enclosure that I've used up to a 700MB drive on my SE. You'd need a second machine with an external SCSI connector to copy from the external drive.

The last option I can think of is to remove the hard drive and daisy-chain it in another machine. Find a SCSI cable with three connectors and a 'Y' power cable. Don't forget to set the SCSI jumpers correctly.