I need advice on S3 neo 1901i ROMS

Hi everyone i currently have a samsung s3 neo GT 1901I almost for a year and a half and it's been stuck on 4.4.2 i love this phone, it has never given me any freezing or rebooting issues but i was thinking now to try go to custom firmware's so guys with a similar phone to mine, please advice me which is the current most stablest rom for my device which i can flash in and if it is stable could you tell me some on the known bugs on it ? i really don't wanna flash a rom and be in full regret as i find this phone of mine really stable on my current stock rom
Thanks in advance for taking your time reading this