types:
apologista
a person who argues to defend or justify some policy or institution
demócrata
an advocate of democratic principles
aislacionista
an advocate of isolationism in international affairs
neutralista
an advocate of neutrality in international affairs
fanático
a fervent and even militant proponent of something
republicano
an advocate of a republic (usually in opposition to a monarchy)
ritualista
an advocate of strict observance of ritualistic forms
secularista
an advocate of secularism; someone who believes that religion should be excluded from government and education
separatista
an advocate of secession or separation from a larger group (such as an established church or a national union)
anglófilo
an admirer of England and things English
creyente
a supporter who accepts something as true
intolerante
a prejudiced person who is intolerant of any opinions differing from his own
aficionado
an ardent and enthusiastic supporter of some person or activity
jacobita
a supporter of James II after he was overthrown or a supporter of the Stuarts
leal,
legitimista
a person who is loyal to their allegiance (especially in times of revolt)
pilar
a prominent supporter
apoyador
someone who endorses a motion or petition as a necessary preliminary to a discussion or vote
sufragista
a woman advocate of women's right to vote (especially a militant advocate in the United Kingdom at the beginning of the 20th century)
viajante
a salesman who travels to call on customers