Stable server provider in Europe ...

[Shindo]

Attractive EU servers are available from legionbox.com (https://legionbox.com/dedicated-servers/) and hostround.com (https://www.hostround.com/hosting/managed-dedicated-server), and I am not sure which plan is the best for hosting a heavy web site with?

[WanderWood]

Reliable servers are available from hostsailor.com and sunucun.com.tr.
Their services are blazing fast. I love it and I hope you seriously look at these hosts. The prices and services have a wide range of services and pricing depending on what your needs are.

[MorStone]

There are thousands of web hosting providers out there, but only a few dozen are true hosting providers like NetShop Isp - like their dedicated servers (https://netshop-isp.com.cy/dedicated-servers/).
They have unique features, redundant bandwidth, and a highly trained staff. Considering these three important factors, I believe you will get the most appropriate host.

[Jodi]

You can also find nice dedicated packages (https://neironvps.com/dedicated-servers.html) at Neironvps.com - They will help you solve any problems associated with hosting service as soon as possible.
Operating Systems: CentOS, Ubuntu, Debian, Fedora, Windows Server. Additional IPs at $2/mo.

[Frost$]

I've tried 5 different web hosts to date and the reason I chose and have continued to stay with Hostingsource.com is their customer service. Get Dedicated servers (https://hostingsource.com/dedicated-servers-promo/) - 50% first month discount.
They moved my website in one day and one of their support guys actually called me on the phone to help me with any questions I had regarding their service.