'common suggestion' is correct and usable in written English.
You can use it to refer to an idea which is widely accepted or suggested as being the most obvious solution. For example, one common suggestion for easing traffic congestion is reducing the number of cars on the road.
Forgetting, too, is sometimes associated with forgiveness, as the common suggestion to "forgive and forget" connotes, though the adage also suggests that these notions are distinct, that forgiveness may occur without forgetting and vice versa.
Another common suggestion is that students need a wider range of empirical skills.
The most common suggestion is a one-year exemption on the first $10,000 or $15,000 of income.
But the most common suggestion was that Mr. Kuhn simply sell the building and relocate, or lease the space back.
A common suggestion to support ecosystem services to agriculture provided by mobile organisms is to increase the amount of natural and seminatural habitat in the landscape.
A common suggestion from former Rhodes applicants was to reach out to students at an earlier point in their college years.
The common suggestion that voters aren't prepared for two women on the ticket ignores the fact that it would reinforce the historic nature of Clinton's candidacy.
There is a common suggestion that Rangers have been badly run; that is not the case for various individuals who have profited considerably from a troubled scenario.
A common suggestion to users for coming up with good queries is to think of words that would likely appear in a relevant document, and to use those words as the query.
Both the larval and pupal stage occur entirely in water, which is why the most common suggestion for getting rid of mosquitoes is to not allow standing water to accumulate.
