The phrase "a host of new tools" is correct and usable in written English.
It can be used when referring to a large number of new tools or resources available for a specific purpose or task.
Example: "The software update includes a host of new tools designed to enhance user experience and productivity."
Alternatives: "a multitude of new tools" or "a variety of new tools".
A host of new tools and services can help you find your new favorite band.
These are getting easier to create by the day thanks to a host of new tools such as Canva, Datawrapper and Tableau Public.
Microsoft is also set to add new multi-desktop views, to help with multi-tasking, and add in a host of new tools and software for businesses.
Over the past six months, we've introduced a host of new tools and features to improve Twitter for everyone.
Weiner also tells me the engineering team is proactively heading up new efforts on a host of new tools for mods that should make their lives easier and improve communications and feedback.
This month: CRISPR flexes its massively parallel muscles (see also this month's editorial), two systems-level properties discovered in yeast, and a host of new tools and synthetic engineered systems.
PlayBook 2.0 will bring a host of new email management tools to the tablet: unified inbox with social network integration, tabbed email, rich-text email editing, multi-account search.
A brand new environment website - EnvironmentGuardian.co.uk - is unveiled today, showcasing a host of new content, from video and data tools to authoritative Q&As on a wide range of green issues.
Credit management and lending offerings sit on one side of the ledger, on the other are a host of new wealth management and investment services tools for a new generation of investor.
Adobe has a host of new features for its Creative Cloud video tools it's debuting at IBC 2016 this week.
One staffer could help manage the online tools and engagement for two dozen farms, providing the inspiration for, and pipeline to, a host of new opportunities.
