Luxor is good and they're only a 1% fee PPS, but they haven't implemented user accounts yet so the payouts are fixed at 0.2 intervals. I've been using Luxor and https://www2.coinmine.pl/dcr/ for the past 5 months (coinmine is 1% fee PPLNS). Both have discord channels that they are responsive to. I'm favoring coinmine right now because they have user accounts and an android phone app so you can monitor account progress remotely.