Do I wait for anything else before I file I864 if I130 was filed and receipt of payment was received?

Significantly more information is needed in order to provide a legal analysis of what may need to be done and when it should be done. That might include, for example, in what family-based visa category was the I-130 filed? is the beneficiary located in the U.S.? is a visa "currently available" in the applicable category? Etc. There really is no substitute for you to consult with an immigration attorney who, after learning all of the relevant information, could advise about eligibilities, options and strategies to attain your goals, and who then could offer legal representation in the often complex application process.

It depends on what process your beneficiary has to undergo: adjustment of status or consular interview.