Looking for reputed dedicated hosts with IPv6 and custom firewall support for advanced streaming setups.
Requirements: 1TB NVMe, 64GB RAM, 10Gbps uplink, ≥50TB bandwidth. Can I rely on GTHost.com dedicated servers? Other options?

Dedicated servers from hostingsource.com (50% off first month on dedi coupon code: 50%Discount) can be quite right for meeting all your needs.
Customer service is very responsive, helps in any troubleshooting. No downtime.