You need to have multi-accounts on multiple services. Where can I buy? Suggest a trustworthy seller
What kind of services? Why can't you just register and get accounts? Why make your life so difficult?
Well, of course it would be easier if you told me which services you are interested in, but okay. I use only one such service and it is the only one I can recommend. It's . Everything works fine, no complaints have never arisen. Check if they have accounts on the sites you want.