e4 opening lines

I'm looking for good e4 lines...
As a child I played Italian with c3 and d4, then with d3, later Spanish and now I tried Scotch Gambit Lines. I've also been working on Catalan for a while, but I probably want to stick with e4. I want to play objectively good lines and am looking forward to your recommendations.

The Italian is a good opening around which to build a repertoire. There are a number of good lines you could choose, or branch into other openings (like you have with the Scotch Gambit). After 4. c3 ..., you can look at 5. d3, 5. d4 and 5. b4 lines, and of course you need to prepare for Black going into the Two Knights Defense. Adding Evan's Gambit as a option is another way to keep your opponents guessing, and allows you to vary your own games with the White pieces. And since you've been looking at the Scotch Gambit, you might want to look into the Scotch Game itself. There is a lot to learn in just the above, but you would end up with a reasonably diverse set of options after 1. e4 e5 2. Nf3 Nc6 ....

The suggestion for the most objectively "good" line would be to play the Ruy Lopez in a standard way... along with the open sicilian, paulsen french, and Tal variation of the caro-kann. Problem with the Ruy Lopez is you'll have to face the Petrov / Berlin... I don't see alot of point to playing an "objectively good" line that leads to a draw in most cases. If I wanted to play an objectively good way I'd probably play the Bishops opening and look for transpositions into the Italian. Or maybe I'd just play the regular italian while tolerating the Petrov, but I wouldn't tolerate playing the Berlin.

I have the same concerns, especially against the Berlin defense, but I think I've found an Italian line that looks promising to me without being mainstream and smelling like Remi. Personally, I don't like the Bishop opening that much.

May I ask which line of the Italian you are playing? I like the Evans, but it sometimes gets me in trouble in slower OTB games.