Plug brand/model/gap

[Bobs21x]

Trying to iron out tune up issues.
What plugs should I look for on my stock LX 3.8?

I’ve tried a few and just not happy

 

[Rodeo Joe]

I stick with Motorcraft without any issues.

Joe

 

[KevinVarnes]

I used to run Motorcraft or Autolites in my old 3.8. NGK also makes good plugs. What have you tried and what are you not happy about with them?