I think recommendation-wise you might need to mention more what you're interested in in terms of gameplay and theme to get good responses, otherwise people often just list what they themselves enjoy, which doesn't really help because all roguelikes have fans, and anything from the sidebar is going to be pretty good.
Since you're focused on input: For low keyboard requirements (but still using the keyboard) I would recommend The Ground Gives Way. Or if you want to use a mouse a lot, Cogmind and I believe Brogue have good support for that.
> Also, there is any mobile-friendly roguelike out there?
Traditional roguelikes are generally not very mobile friendly since they're usually ports that still require a bunch of keyboard use, which is clearly bad on mobile and you might as well play on PC :P. A good exception to that rule would be Pathos, essentially NetHack being rebuilt from the ground up for mobile devices, so if you're into NetHack-style play you can try that. It's pretty smooth to operate compared to most TRLs on a phone.