Ok, so here is a list of all the currently operational ETN pools that I've been able to locate:

• https://easyhash.io/pools
• https://electromine.fr
• http://etnpool.sytes.net/
• https://electroneum.hashvault.pro
• http://hashparty.io/
• http://electroneum.ovh/
• https://etn.fairpool.xyz/
• http://electroneum.vip/
• http://etn.fastpool.io/
• https://www.electromine.net/
• https://coinfoundry.org/pool/etn

These are mostly above 1kH/s pool hashrate, so they should be able to find a block at least once a week or so.

Just found the list at https://github.com/electroneum/electroneum-pool#pools-using-this-software