Acts 9:20
And straightway he preached Christ in the synagogues, that he is the Son of God.
Torrey's Topical Textbook—AKJV

Acts 13:5
And when they were at Salamis, they preached the word of God in the synagogues of the Jews: and they had also John to their minister.
Torrey's Topical Textbook—AKJV

Acts 17:1,17
Now when they had passed through Amphipolis and Apollonia, they came to Thessalonica, where was a synagogue of the Jews:
Torrey's Topical Textbook—AKJV