Now that the map plays a much stronger role in the game, and especially in openings, it's harder to pinpoint to a meta for the first phase of the game. With that said, yes, there are some openings that may be considered stronger than others, but at the same time, they are much more circumstantial than say the Tradition opener in Civ 5. In other words, the openings are more dynamic, and depend on a variety of factors, including but not limited to what dominating terrain you have around you, the presence of immediate neighbors and who they are, the presence of barbarians and their density, your civ, and others.
For some, Magnus was a meta, but I am not so sure. Now, with the rebalancing, the opposite may be true: Magnus is not a "no-brainer" anymore... if you are lacking room to initially expand and don't want/cannot go early aggression, Pingala is your guy, as long as you can grow your city fast and to the housing cap, at least until you are ready to expand, aggressively or not. You cannot spam settlers with Pingala, as each one of them will take 1S and 1C with it... and on and on. No strong meta anymore (pending the real test, game in our hands, obviously).