The phrase "a wider range of techniques" is correct and usable in written English.
It can be used when discussing the variety or diversity of methods or approaches available in a particular context, such as research, art, or problem-solving.
Example: "In this workshop, participants will learn about a wider range of techniques to enhance their creative skills."
Alternatives: "a broader spectrum of methods" or "an expanded variety of approaches".
Future studies could apply a wider range of techniques (e.g. similar to [34, 52]), such as XRF, Raman spectroscopy, high spectral resolution reflectance spectroscopy in the visible and NIR which could confirm the pigments and inks identified, and the materials used in the preparatory sketch.
Although the detection of copy number aberrations in ctDNA is possible (Bettegowda et al. 2014), we elected to focus the rest of the analysis on SNVs and frameshift mutations, which can be detected with greater confidence across a wider range of techniques.
Unrestricted by the technical limitations of printing, a wider range of techniques, pigments, and surfaces were available to the painter.
Influenced by Louis Armstrong, Williams was a more modern stylist than Miley, with a wider range of technique.
His magazine covers, lettering styles, and posters displayed a wide range of techniques and design approaches.
The collection also features many more general adverts for the newspapers which utilise a wide range of techniques to help set them apart from the competition.
This means emphasising the firm's capacity to solve any problem, using a wide range of techniques, rather than marketing a particular product.
Research now being used includes a wide range of techniques, from special questioning techniques to physically measuring emotional response by gaging such things as brain waves and basal skin response.
It had already covered unprecedented area and conditions, contributing to a wide range of techniques, experience and "secondary results" – such as detailed mapping of a large part of the ocean floor – that did not exist previously, he said.
She is the founder of Amazonails, which has been involved in the construction of over 100 straw buildings and has pioneered a wide range of techniques to simplify construction, save energy and reduce other environmental impacts.
My mother would cook recipes learned from people who came from all over India, and I was exposed to a wide range of techniques and styles of cookery as a child.
