Need High-Clock AMD Dedicated Server for Heavy Compute Workloads

Looking for recommendations on a dedicated hosting provider offering Ryzen 9 or EPYC CPUs, high single-core performance, ECC RAM, and NVMe RAID.
Must support custom keel, remote KVM, and fast delivery. Prefer EU or US East datacenters.
Any information on Greenwebpage.com server host - is it reliable? What host is better?
Budget is flexible if performance is guaranteed.