A quick note about Rapid Reviews. Often researchers are drawn to these as an option due to their faster timeline. However, be cautious about going down this path as Rapid Reviews are most often justified when there are external forces affecting the timeliness of the review (i.e. rapidly evolving landscape or impending policy decisions).
As the popularity of evidence synthesis has increased, more people want to conduct reviews. But there are various review types and some may be more suited for your situation than others. This helpful decision tree from Cornell University Library walks you through different review methodologies based on your needs.