The phrase "an array of solutions" is correct and usable in written English.
It can be used when discussing multiple options or approaches to a problem or situation.
Example: "The team presented an array of solutions to address the challenges we are facing in the project."
Alternatives: "a variety of solutions" or "a range of solutions".
The plan calls for an array of solutions.
Verizon offered an array of solutions but no time frame for carrying them out, which left some business owners exasperated.
This strategy comes with the added benefit that having an array of solutions allows one to meet different energy storage needs.
By so doing, they provide an array of solutions for journalistic institutions that wish to reach a new generation of users and make use of today's technological developments.
Hertel-Fernandez proposes an array of solutions that could protect workers from employer political coercion and could also win the support of majorities of Americans.
The study proposes an array of solutions to help speed up traffic around the museum, expand the garden on its grounds and allow light into the church, while still blocking an exterior view of the stained-glass windows.
Although there are an array of software solutions aimed to optimize the human element in design, practical ergonomics methodologies and technological solutions have struggled to gain widespread application in ship design processes.
Instead of rationalization and hand-wringing, Mr. Reid offers an array of possible solutions for our crisis.
Cities also need to support an array of infrastructure solutions like bike lanes and sidewalks to connect the various modes.
A team of scientists from the US and UK proposed an array of technical solutions aimed at developing a more sustainable plastic manufacturing and recycling industrial system.
This covers challenges of reducing emissions from building construction, operation and maintenance while also presenting an array of potential solutions.
