What biblical contradictions have you not researched?

I only ask because people bring up “contradictions” all the time, but many of them are easily explained with even marginally thorough research.

E.G. The following “contradiction” is listed on some random website..

Who is the father of Joseph?

MAT 1:16 And Jacob begat Joseph the husband of Mary, of whom was born Jesus, who is called Christ.

LUK 3:23 And Jesus himself began to be about thirty years of age, being (as was supposed) the son of Joseph, which was the son of Heli.

Heli was Joseph’s Father-In-Law .. so it’s not surprising to hear it worded in this way in Luke.. and yet it goes on the list.

Has anyone researched an alleged contradiction and found it to be legitimate?