How do I securely erase a SSD WITHOUT using a (s)ata secure erase command?

There has to be a better, less risky way then using buggy firmware with dodgy support across multiple OSes.

For example, with a normal HDD, I could just nuke the thing with nwipe or dban.

Can't do that with a SSD, because it won't reliably erase each block.

Any suggestions?