Searching by label could help. Some really good releases were on Black Saint, Soul Note, AUM & ECM, at least in my limited exposure to 90s jazz. In particular albums from Muhal Richard Abrams, Julius Hemphill, Tim Berne, Matthew Shipp, Bill Frisell and Kenny Wheeler come to mind.
Regarding Jackie McLean, I love some of his later output. Rites of Passage is a good one.
But the best one that comes to mind is Sonny Sharrock's Ask the Ages from '91. A classic in every sense, with some nice vinyl reissues coming within the past year.