I am not a Registrar. If you want me to register your domain name, I will just pass the cost on to you on the estimate. You can do it yourself. The cost is typically $35 per year.
I am not a Web Site Host. I can sign you up with my hosting company and will pass the cost on to you on the estimate. You can do this yourself. Expect to pay $20 to $30 per month. If you see something below $10 per month, make sure the option you are choosing has all the features that you need.
For $50 per month I can register your account, host your site, and perform SEO services.
Search Engine Optimization in reality means coding your site correctly and then submitting it to the most popular search engines. Your ultimate ranking on the search engines is beyond anyone's control other than the search engines. You can hire SEO experts to perform clandestine activities to improve your ranking. I do not do that. I simply submit your site and comply with the guidelines of the search engines.