Here's a list of the current 0% commission validator nodes I found in the top 50 (Not including 51-100 because of potential for nodes to drop out). I've also included their max commission rates. I'd stay away from the higher max rates one because of the obvious potential for them to increase rates substantially.
Xya Pool (crocncl1pf3rly9rqspzwd4dredeyuzavtku0qne094u80) - 10% max
\[SG\] X Staking - 10% max (They're also upfront that they will be increasing commission rate soon and that this is a promo period)
[Stakespace.org](https://Stakespace.org) \- 30% max
StakePool - 15% max
🔨mjolnir⚡ - 0% - 50% max
Kingstaker 0% - 10% max (0% promo period)
Smart Stake - 10% max (0% promo period)
Icy Road - 0% Commission Validator - 20% max
Allnodes - 100% max
UbikCapital(0%Commission) - 90% max
[nebkas.ro](https://nebkas.ro) \- 25% max
The most competitive in terms of max rate seem to be Xya Pool, Smart Stake, Kingstaker, Onward, and X Staking. I'd personally recommend one of the first 3 in order for voting power to be more reasonably distributed amongst validators, as the other 2 are already of fairly significant size.