Emperors Pedro I (1822-1831) and Pedro II (1840-1889)
All the presidents of the Old Republic (1889-1930)
Eurico Gaspar Dutra (1945-1950)
Café Filho (1954-1956)
The 5 generals who were presidents during the military dictatorship (1964-1985)
Fernando Collor de Melo (1990-1992)
Michel Temer (2016-2018)
Was Temer better than Bolsonaro? His wife is an attractive lady, I am surprised this didn't help his career.
Is there any Afro-Brazilian conservatives?
Temer was bad, but he was not as bad as Bolsonaro.
The beauty of first ladies is not an important issue.
Yes, there are many conservative Afro-Brazilian. The president of Fundação Palmares (a branch related to promote racial equality) under Bolsonaro's administration was a far-right Afro-Brazilian. Congressman Fernando Holiday is also a right-wing extremist.
Celso Pitta, mayor of São Paulo between 1996 and 2000, was not an extremist, but he was conservative.
The racial voting gap is not as big in Brazil as it is in the USA. Lula performed better in the group of blacks than in the group of whites, but this difference can be fulled explained by income.