A tourist visa is usually required on a reciprocity basis. Please check whether you are required a visa consulting the site:
www.gov.br/mre/pt-br/assuntos/portal-consular/vistos/informacoes-sobre-vistos-para-estrangeiros-viajarem-ao-brasil
Citizens from Australia, Canada, China and USA can apply to an eVisa:
https://brazil.vfsevisa.com/