"Options" are few and far between no matter who you fly with.
In the 80's I was active duty Air Force and we always preached carry-on only travel so you were able to jump on another flight if you experienced a delay or cancellation. In those days, a stand-by seat was pretty much as good as a confirmed seat. It was rare not to find a seat. Today, planes fly full and if you don't have a confirmed seat, you might as well forget it. I fly carry-on only now but because I much prefer it.
I have flown WOW twice and liked it. I did get stuck in Iceland once, because weather closed the runway, they paid for hotel and meals, during the delay, without having to arm-wrestle customer service - I really appreciated that. The best part about flying through Iceland is you get your Schengen stamp there, which takes no time at all, and can walk right to ground transportation when you arrive at your destination (if it's Schengen).
I've flown BA and liked it too. They used to be one of the best. They've trimmed their amenities and service quite a bit since then and are like any other airline now.
I haven't flown Norwegian.