Until Bolsanaro took over the party, the Social Liberal Party was exactly what I thought it was...a socialist liberal party.
"...In 2015, the PSL underwent a reform led by the internal social liberal wing "Livres", with names such as political scientist Fábio Ostermann and journalist Leandro Narloch reinforcing the party's affiliation with social liberal policies.[13][14]
However, on 5 January 2018, controversial right-wing politician Jair Bolsonaro became a member of the party, which prompted the "Livres" wing to leave the party in protest of Bolsonaro's social conservative views. After the exit of Livres, the party followed a national-conservative path. Since then the party has discussed a name change, either to "Republicans" (Republicanos) or "Mobilize" (Mobiliza).[15] The party also changed its colors from purple to the more nationalist blue, yellow and green, the colors of the flag of Brazil..."
Since Bolsonaro's entrance in the party, the party has changed much of its ideologies, abandoning its former social-liberal policies while keeping its economic liberal policies, supporting privatization and decentralization while at the same time adopting very conservative social policies, opposing same-sex marriage, abortion, legalization of marijuana and the teaching of gender identity in schools.[17]
The party is openly anti-communist, and its members are prohibited from making alliances with left-wing political parties.[17]...
https://en.wikipedia.org/wiki/Social_Liberal_Party_(Brazil)
The party doesn't appear to be too popular.