The best europe vps provider depends on what you need for hosting. Do you want linux vps or windows vps. Will you use cpanel or cpanel alternative. Do you want kmv vps.
Are you using eu vps providers because your targeting a certain country or is your websites for everyone on internet. If your targeting germany than legion box. If your websites are wolrd wide than any cheap vps provider is fine. The vps provider does not have to be in europe.
Make sure they have no set up or upgrade fees. I also like using vps provider in country if i make websites for one country. If my sites are worldwide then i like a cheap vps provider that has no VAT taxes.