If you want to customize your android smartphone in your own way. Then you must check out these 15 Best Custom ROMs for android
15. Arrow OS
14. CR Droid
13. Boot Leggers
12. Resurrection Remix
11. Dirty Unicorn
10. Bliss ROM
09. MSM Extended
08. OMNI OS
07. Lineage OS
06. Paranoid
05. AOSP Extended
04. Havoc
03. Evolution X
02. MIUI
01. Pixel Experience
To read in-depth more about these Custom ROMS check out the full article here: Best Custom ROMs for Android