This is the 2482nd most frequent Spanish word.
acá
"Acá" means "here" or "in this place."
In this sentence, 'acá' is used as an adverb indicating proximity relative to the speaker, pointing to a close location where options for lunch are available.
Acá puedes encontrar varias opciones para almorzar.
Here you can find several options for lunch.
Here, 'acá' again serves as an indicator of location, designating the place (close to the speaker) where the gathering occurs.
Acá solemos reunirnos para conversar los fines de semana.
Here we usually gather to chat on weekends.
'Acá' in this sentence emphasizes the immediate proximity to the speaker, explicitly asking for the presence of someone close to the speaker's location.