The phrase "a plethora of mostly" is correct and usable in written English.
It can be used to describe a large number of items or options that are primarily of a certain type or category.
Example: "The conference featured a plethora of mostly innovative technologies that could change the industry."
Alternatives: "an abundance of mainly" or "a variety of primarily".
This calculation can be done by most of the previously mentioned programs, but there is a plethora of other, mostly web-based software tools available ([ 38] http://neurolex.org/wiki/Category:Resource:Gene_Ontology_Tools).
There is a plethora of research - mostly ignored - on the value of music therapy, and on the positive, healing effects of classical music on the body and mind.
After envisioning a product that does all of the above and more, the Thumb team quickly learned that users weren't as focused on products as they were on a plethora of random things, mostly themselves.
The genome-wide association study (GWAS) era has uncovered a plethora of common alleles, mostly of modest effect sizes (odds ratio (OR), <2), associated with complex diseases under the common disease-common variant (CDCV) hypothesis [ 4].
Scholars of international relations and analysts closely watching the escalating tensions in the SCS have come up with a plethora of convincing arguments to examine the dilemma mostly from the side of the bigger power, China, who has the largest claims to the area.
They have evolved, and over time these small changes have accumulated into huge changes and represent the transformation of a group of mostly large, Earth-bound carnivores into a plethora of flying birds.
"But mostly, he presided over a plethora of macho crime shows featuring a virtual genocide of dead naked hotties in morgue drawers, with sadistic female autopsy reports, ratcheted up each week.
In "The Tour Guide: Walking and Talking New York" (University of Chicago Press), Professor Wynn recalls his own experiences on a plethora of cultural, historical, maritime, culinary and educational tours conducted mostly for tourists, but also frequented by curious New Yorkers.
A plethora of beauty salons (50 of them in my arrondissement) and mostly low prices (as little as 18 euros, or about $22, for a cut, shampoo and blow-dry) make frequent hair maintenance easy.
These human gut bacteria are known to have a very plastic genome and a plethora of autonomous and non-autonomous mobile elements that are transferred mostly by conjugation [ 14].
