Any lube that would stop front suspension squeaking?

You don't need new components, you are simply lacking grease in the right places.

Not with 25 year old rubber bushings he’s not. Rubber bushings from 1999 are smoked even if they just sat on the shelf that long.

And if by some miracle the rubber hasn’t completely deteriorated, if it’s a ball joint making that noise then more grease isn’t going to fix it now.