cleaning liquid for LPs

I have been very satisfied with Disc Doctor cleaning fluids.  Not terrible expensive, but really effective.

DON'T BE FOOLED INTO USING ANY ALCOHOL-BASED CLEANERS.  They can leach out some of the softeners required to help a record recover from use.

I use nitty gritty enzyme cleaners with my machine

I've been using the L'Art du Son fluid.  It's excellent.  After it's gone, I'm going to try the Audio Intelligent #6 one step.

I use Audio Intelligent three step system with Archivist non-alcohol step two. Okki Nokki machine. It rotates both ways which matters. I use step three, pure water, twice. Disc Doctor brushes, three of them. Excellent results. About $90 AI kit would be enough for 250-300 records. Okki Nokki is $499 from the US distributor.