Since discovering ETN and mining on my phone, I am always eager to find new ways to get ETN. I searched here and only found https://freeetncentral.com/ mentioned, which I also use. Edit: I had no problems with registration or logins.
Here are a couple of others I’ve had fun participating in.
The ETNLottery can be found at https://electroneumuniverse.com/. It isn’t a free one, but for $1 of ETN, 3 winners are picked with 1st place getting 50% of pot, 2nd 15%, and 3rd 5%. 30% goes back into the Electroneum Foundation which you can read about on the site.
The YouTube Lottery at https://www.youtube.com/channel/UCEtLbyepLBt1JaitNgbYY5w is free and you only need to subscribe to the channel and post a comment each week.