I would think earthlikes are way off in the future. Rocky worlds with thinner atmosphere would be cool to see. One thing that I get "bored" of with the current planets is the lack of erosion. I am hoping that worlds with some athmosphere (with rain and wind) would make more interesting geological features, eroded cliffs, sharper peaks and interesting valleys.
but i'll settle for gas giants
m
Where exactly would you like to land on gas giants? They are called "gas" for a reason.
https://upload.wikimedia.org/wikipedia/commons/b/b5/Jupiter_diagram.svg
https://i.pinimg.com/originals/b2/b3/2f/b2b32f08eb7c61f1d214d66e2e1dc0f5.jpg
Even some of the rocky planets would be a terrible place to land on. Think of Venus with its 90 atm surface pressure and some 500°C surface temperature. A corrosive Thargoid nest would be a better place for your ship.
Earth-like planets with life must have very complex and diverse surface features, just think of different places on our own planet.
I think the only relatively easy-to-implement atmospheric landings would be on planets like Mars, the surface of which looks basically the same as some of the landable planets already existing ingame, only with a very thin atmosphere.