Annoying oil leak

Been trying to track down an oil leak. Maybe some of you can help. It's motor oil, seems to run down the oil filter and drip for a bit. After engine is cool no drip. There seems to be a lot of oil buidling up over lower half and housing over torque converter. I recently replaced the valve cover gaskets so I don't think it's that. Any ideas before I go find a lift?

Thanks.

Could be the intake at the rear or the driver side valve cover.