Warning: NiceHash is not good, and not profitable dont use it, Its only shows profit in Calculator but actually its not good to better profit.
you can use this pool, this is more profitable than NiceHash, and Fast.
1. https://hash-to-coins.com
2. https://prohashing.com
Nicehash works fine and IS quite profitable with my A2 miners.
They DO bounce your miners around a lot though, so the "calculated" profit is always more than the real profit.
I suspect their issue with the L3+ is that the L3+ software just doesn't handle being bounced around a lot.
Someone else mentioned litecoinpool.org - which is my BACKUP pool recently, but has been my primary pool at times (and might be so again in the future).
Very reliable pool, and well designed to handle HUGH hashrate.