hhsrb

simple green

HELL NO

I know plenty of people do it, but keep emulsifiers well away - you'll never get every trace out (in fact, heaps will stay), and then future lube will be contaminated with a substance which allows water to mix with it. Bad bad bad

Only oil-based solvents. And if you point a big squirt at your chain, also bad bad bad - you'll just be flushing the grit into its guts. You want a nice soft rag, damp with solvent, and there's nothing for it - you just have to drag that chain through it. If there's a mile of gritty crap clinging to it, maybe try to sort of dust it off first, rather than smooshing it all in.

At some point you can spray your cogs and rings (if you don't mind spraying bulk solvent around, that is; I prefer to be a bit less nasty and use more elbow grease), before returning to the chain.

If you make sure to lube minimally and wipe off the excess repeatedly until there's bugger-all excess, all this is easy as just wiping the drivetrain with a solvent-damp rag, and it's not a big production.

So many folks don't realise that too much lube can be almost as bad as not enough. Goldilocks that shit.

Old mate Sheldon on the tricky problem of chain cleaning and lubing: https://www.sheldonbrown.com/chainclean.html