DR Hi-Beams are a perennial favorite steel string. They last forever, feel smooth for stainless strings, and have a supple but not overly stiff feel due to the round cores. That being said, their texture won't be as smooth or plush feeling as Sunbeams (which are a very plush-feeling string). Steel strings are generally rougher feeling than nickels. (The worst are Rotosound RS66s. Those things feel like cheese graters on my fingers, and they dull out too quickly for my tastes).
I think a good string for nickel players wanting to try out steels are LaBella Rx Steels.
https://www.labella.com/strings/category/rx-stainless/ They are, what I'd call, "steel with a nickel feel." They're less clanky than typical steel strings and have a nice nickel-esque mid-bump to them. I think they're smoother to the touch than D'Addario XLs. And those LaBellas are reasonably priced too and have decent longevity in my experience, so that's a plus. I've tried the LaBella nickel RX strings too. Those are meh, but the Rx steels are something special. And if you're a 5-string player, that 118 B is... it's not floppy at all, but its light gauge allows freer vibration so it sounds fatter. I don't know what sorcery LaBella does, but...
Another in-between string that might be worth a try is GHS RoundCore Boomers. Though they're round core strings (like Sunbeams or Pure Blues), they feel stiffer and definitely have a bit more growl to them than Sunbeams (which I found too polite sounding for my tastes). I like them a lot, but GHS jacked up their string prices more than their competitors, so something like DR Pure Blues might be a better value.
Bear in mind, I'm a notorious "gotta try 'em all" string-GASer, so take what I say with that grain of salt.