I think the media are rather pushing for a Philippe vs Bardella/Le Pen than Melenchon in second round.
Hence the current "demonization" of LFI. I do not feel like the demonization is working btw.
And then in second round, they will demonize RN again, something they forgot to do the last five years, and the last five years prior to the last presidential election as well.
So you'll have another republican alliance against the RN to put another macronist in charge.
They did that the last 2 elections and it worked pretty well.