Go to their telegram channel see which roms gets more public rating. Generally there are two types of audience one is battery friendly roms and other one is performance based some are even balanced so choose as per your liking.

Ps: remember unofficial doesn’t mean it’s bad or not safe. If the dev is good the. Unofficials rom even beat the official ones.

It just got lineage os official

I highly recommend crDroid. It’s super customizable and has a good battery life / performance ratio.