I am using a new bit of software and I can’t recommend it enough. Pro writing aid will help you with your entire writing project. Grammarly is well and good but this is even better in helping you instantly correct every mistake in both grammar and style.
And the best bit about it? It may be an expensive fee, but it is also a one-off payment. There are other subscriptions available which will allow you to pay once a year if that is what you would prefer to do.
You could always download the free trial to see what it can do. However, it can be a bit confusing in word as you have to sift through the report to highlight mistake. In Google Docs it is a lot easier to see exactly where you have gone wrong. (The full report is still available for you to look at).
It also works with scrivener, although I haven’t really tried that as I tend to just copy and paste my work from Google Docs.
Check it out here.