The phrase "attain mainstream" is correct and usable in written English.
It can be used when discussing the process of becoming widely accepted or recognized within a particular field or culture.
Example: "The indie band worked hard to attain mainstream success after years of performing in small venues."
Alternatives: "achieve mainstream" or "reach mainstream".
Serebrennikov was always a particularly Russian type of rebel: one who sought, and attained, mainstream success, often with the blessing and support of the state.
Much like John Peel, who was often criticised for ignoring bands as soon as they attained mainstream success, Goodman's restless determination to move on does not spring from snobbery, just an irrepressible desire for the new.
Lopez attained mainstream notoriety after her portrayal of the Tejano star in the hit 1997 biopic "Selena".
Alex Chan's take on the 2005 civil unrest in France, The French Democracy, attained mainstream attention and inspired other machinima commentaries on American and British society.
Pioneering the future of the browser and attaining a mainstream audience may be fundamentally at odds.
We have been seduced by advertisements and mainstream media to attain instant gratification by buying things we don't need, with money we don't have to impress the people we don't like.
After studying an extra foundation year in preparation, participants sit the same exams as, and attain a success rate not far below that of, mainstream students.
The list of contenders even includes two teams, the Pirates and the Orioles, that are trying to attain their first winning seasons since the Internet became mainstream.
Although Mudhoney never attained this level of mainstream acceptance, according to Allmusic's Mark Deming, the band's "indie-scene success laid the groundwork for the movement that would (briefly) make Seattle, WA, the new capital of the rock & roll universe".
As it is highlighted in the theory, the enclave strategy overcomes the barriers to access mainstream labour market –being one of the most relevant paths to attain social integration– and to play indeed a relevant societal role in terms of socio-cultural cohesion, economic performance, and urban regeneration.
