Hello,
I'm an SEO Expert with a lot of experience in this domain.
You can check my reputation and some of my posts to check the quallity and SEO Knowledge I have.
The best choice this days is to get a custom SEO plan for your website,insteed of buying random services...
Also,I can provide both White-hat and Quallity Black-Hat SEO depending on your prefferences.
I usually work with medium-high competition keywords,but if you have a decent website,I might be interested.
Have a great day!