Oil burning 1qt every 700miles

I apologies if this post has been started before but I have an 88 trooper that consumes about a quart every other fill up. I've read that this is a common issue with this era as the source lies in the engine's design, too few oil return ports/ return ports sludge up/ leaky rings. I can’t seem to find any sure fire fix to the issue aside from a rebuild/ swap with newer year engine. I've also read about pulling the plugs and seafoaming it overnight to try and clean up those ports, I've also read flushes seem to help. Has anyone tried anything else with much luck?? Please help!!