NOTE: Please put, in bold, ADD TO LIST at the top of your post if you have info you want included/corrected here. PLEASE DO NOT PM ME, I will see it at the same time I see your post so it is not going to help anything.

EDIT 9/3: clearly I'm not updating as often, there isn't much new to report, but if you have any updates or corrections, include the add to list bold and I'll try to check in every couple days.

Here is a current list of tested pools. This was started by culling from the Z9 thread (as of June 1st), but built from comments below of your experiences, add new ones (begin post with ADD TO LIST) and I'll update this post as often as I can. Please try to keep it on topic, I'm not going to report anyone but there are plenty of threads to discuss the machine itself, ASICs and their effect on algos, GPUs vs ASICs, etc. Let's just keep this one to useful information as best as we can, cool? Cool.

PLEASE NOTE: these are based on first person accounts. YMMV. I put a * next to any working pool I have personally tested.

Working:
antpool (ZEC)*
Zhash.pro (ZEN)*
Coinblockers (HUSH, KMD, BTCP, CMM)*
Bitpool (HUSH)*
Flypool (ZEC)*
Suprnova (All equihash except noted below) (use ccminer port)*
Bitcoin Interest Official pool (BCI)*
Zhash.pro (BTCP, HUSH, XSG, ZEC)*
Luckpool (ZEN, ZCL, ZEC, VOT, KMD, HUSH)
Miningpoolhub (BTG, ZCL, auto-switch)*
cmmmine (CMM)
Luxor (ZEC)
viabtc
Mining Dutch (multiple coins)
Prohashing (use port 3336)
Powermining.pw (ZEN, ZCL, BTCP, VOT)
Slushpool (ZEC)
2miners (ZEC)
Bitpool (KMD) (NOTE--confirmed by pool owner, independent confirmation pending)
Pool Sexy (ZEC) (NOTE--confirmed by pool owner, independent confirmation pending)
Nibiru Pool (BTCP, VOT, VIS, ACH, ZCL, ZEN, BCI) (NOTE--confirmed by pool owner, independent confirmation pending)
Equigems.online (NOTE--confirmed by pool owner, independent confirmation pending)

Not working currently:
Nanopool (ZEC) -- NOTE that a user has reported NP have ordered a Z9 and will be testing and fixing once it arrives
Suprnova (BCI)
Suprnova (ZEC) (working with high rejection rate)
Zpool -- reports only accepting roughly 50% of hashrate

CONFIRMED NOT WORKING:
Nicehash (confirmed incompatible by Nicehash)
All SNOW pools (fork)
All SAFE pools (fork)
All BTG pools (fork)

Test requests:
Bitpool (KMD) link
ZCL solo link
Labs.f2pool (ZEC, ZCL) link

Forked:
BTG
SafeCoin
Snowgem
ZEL

Also here's a Reddit thread with a list of info on which coins have and haven't confirmed if they are forking or not. This is allegedly being updated, but it may be out of date by the time you read it: https://www.reddit.com/r/zec/comments/8h14ms/equihash_antiasic_fork_every_equihash_coin_and/

EDIT: since I've been asked a couple times, here's a couple addys to donate if you want to, but there's seriously no need. This forum has saved me countless hours and helped me to do everything from build my first rig to help someone set up a pool, I'm just glad to be contributing in some tiny way, and the testing I've done has maybe taken a couple hours off my mining time at most, so there isn't pretty much any loss. Still, again, since I was asked, here's a ZEN and BTC addy:

ZEN: zndAMx7TsZpCMPw1RX4U5fPvoHJJqPsFrEp
BTC: 3GPinbTHQVvLrnHARZ9Pc4bYEHoZcLNSU8

(last update 9/3)

Not yet; another user did try with Nicehash though, according to him/her, the rejection rate was still high...

I wonder how he test his miner.

Commercium supports Z9 and will not fork, current profit on 10KSol is
440.72408320 CMM - $50.54

https://www.commercium.net/

I used the one on the Commercium discord for that calculation, there is also a calculator here:
https://www.coincalculators.io/
https://www.coincalculators.io/coin.aspx?crypto=commercium-mining-calculator

Has anyone played with the freq ? I changed mine to 634, no hardware errors tiny temp increase and got it 14.4ksol/s

Is it possible what issue with Nicehash happened because of dynamic difficulties data on pool?

Have you confirmed this? The site lists the coin as ASIC-resistant under the FAQ...

I'll download wallets for those coins and give it a try this afternoon.

Ok, been running for about 10 minutes on your Hush pool, no problems I can see so far. I'm going to leave it there for a few more minutes to be sure. I probably won't have time to test your Komodo pool until later as I have to run out for a while, but the Hush one is definitely compatible.