Current contaminant levels from Deep Water Horizon oil spill?
Concerning

Is there any good current research out there

the most recent study I found is

Persistence and biodegradation of oil at the ocean floor following Deepwater Horizon


In this work, we assess the extent of degradation over 4 y postspill
for each of 125 petroleum hydrocarbons that contaminated the seafloor.

and compares levels from thousands of sample sites. This seems to qualify 'good current research'.