The phrase "a variety of additional" is correct and usable in written English.
It can be used when referring to multiple extra items or options that complement a main subject.
Example: "The report includes a variety of additional resources to help you understand the topic better."
Alternatives: "a range of extra" or "several supplementary".
In addition, the C-terminal was also found in proteins containing a variety of additional protein domains in other prokaryotic species and in few additional eukaryotic sequences.
Two incidents in Tarrytown have prompted Westchester school officials to take a variety of additional steps to protect students.
They have been approved by a variety of additional professional societies, including the American Diabetes Association.
Wearable sensors provide an opportunity to collect a variety of additional variables during clinical tests.
Cooling cities would therefore provide a variety of additional benefits, which are difficult to value but are potentially very large.
Based on this assumption, substrates of the same type for a variety of additional enzymes were developed and tested.
But policymakers undercut the system with a variety of additional and unnecessary mandates, such as the state's low-carbon fuel standard.
China also has a variety of additional luxury taxes on watches, golf equipment, alcoholic beverages and cigarettes, as well as engine taxes on cars.
While reinforcing material from the book, the CDs also contain a variety of additional exercises, including role-playing, and a useful guide to pronunciation.
The result is a pillow that is comfortable for everyone in every situation, and is capable of a variety of additional functionalities for sensing and actuation.
Along with that description, they received a variety of additional statements about specific attributes of the bill, randomly distributed among the survey recipients.
