Most all casinos are mobile friendly nowadays. So pretty much whichever casino is your favorite, they'd probably be your favorite mobile casino too. RTG casinos have a good mobile interface, as well as WGS. Actually most all of the different software mobile interface are good. lol
Hello! I had the same question a while ago and I did a little research regarding mobile casinos. You can find many lists where people suggest good mobile casinos. But it depends on people's taste. I might like a mobile casino, but you might think it's trashy, so it's really up to your preference.
My suggestion is to do a little research, find out some pros and cons regarding mobile casino and then try try try!
Eventually you will find one you like