@Khalayx "'Anti-Sicilians' are surprisingly popular in internet play but give up your advantage as white and, imo, are pretty boring. If you prefer this style of play I would not recommend e4. (I recognize many on here will disagree)"
Yeah, I disagree pretty strongly with this, so you got that right
I also disagree.
I play the Grand Prix attack, and I can still try to get an opening advantage with it!
I think there are many decent systems which you can play against the Najdorf. Considering your playing strength you probably don't want to spend so much time on openings since this barely decides your games. So I would go with a simple to learn system like 3.Bb5+ Variation and avoid memorizing variations of the open sicilian. Hope this helps!