The phrase "a fan base on" is not correct as it lacks clarity and context.
It could be used when discussing the platform or medium where a fan base exists, but it typically requires additional information for proper usage.
Example: "The artist has built a strong fan base on social media platforms."
Alternatives: "a following on" or "a fan community on".
Indeed, Cantlie soon developed a fan base on social media.
You also come from a streaming background — building buzz and a fan base on SoundCloud more than, say, the radio.
From the start, Pizza Brain sought community support, building a fan base on Facebook and raising more than $16,000 from hundreds of pizza lovers on Kickstarter.
In recent years, fatal breakdowns in Triple Crown and Breeders' Cup races undermined the sport's scarce opportunities to build a fan base on television.
Mr. Murong owes his commercial success to the fact that he has found ways to practice his art and build a fan base on the Internet, outside the more heavily policed print industry.
Mr. Camacho, who played guitar and wrote songs as well as singing, was idolized by youngsters in rural Mexico and had begun amassing a fan base on the other side of the border.
The mood Ms. Wiliams captured might have once been called collegiate, and she definitely attracts a fan base of young women bent on self-realization.
Rap's latest success story, Russ, released 11 albums and dozens of songs on Soundcloud before he garnered a fan base to capitalize on.
New artists can make their music available on Soundcloud and YouTube, build a fan-base on Facebook and Twitter, and sell their music on iTunes and Amazon.
Take Richard Branson, as the founder of Virgin Group he's got 4.8 million Twitter followers – a significant fan base on one social media channel hanging on his every word.
The N.B.A. faced an outraged fan base on one side and an angry labor force on the other; Sterling's recalcitrance forced Silver to make the biggest gesture of condemnation possible.
