Any dedicated GPU server to handle AI/ML workloads?

Need recommendations for a dedicated GPU server to handle AI/ML workloads. Prefer NVIDIA cards, high bandwidth, and root access. Which providers deliver stable performance with flexible configuration options? Is GTHost.com GPU server hosting reliable? Any comments on them please?

Overall very happy - one complaint or suggestion would be that although the online help is extensive I found it a bit hard to navigate through. If you make GTHost.com your choice for AMD server hosting you have made a great choice as I did. Toronto and Zurich - Ryzen 9 9950X for top-tier processing power.