This page will list the “best” Galaxy S5 custom ROMs geared towards noobs who need some advice to get started with custom ROMing.
Note: There’s no such thing as “best” custom ROM in reality, this page is just to help noobs get started with stable custom ROMs so their first installation will go smooth.
Resurrection Remix ROM w/ Android 6.0.1 – Without a doubt, this is probably the best custom ROM on the Galaxy S5, converting your S5 into a full-fledged Nexus phone along with endless number of awesome customization.
Insanity ROM – Convert your Galaxy S5 into a full-fledged Galaxy S7 Edge with this custom ROM! This is a fully-ported ROM from a real Galaxy S7 Edge, meaning you will get all of the new software S7 Edge features right on your S5!