GUI FTP Clients for Windows

Core FTPFTP client. Not updated since 2020.
Filezilla ClientFree and open source FTP, FTP/SSL and SFTP GUI client (beware of adware)
SmartFTPFTP (File Transfer Protocol), FTPS, SFTP, WebDAV, S3, Google Drive, OneDrive, SSH, Terminal client. Commercial.
Total CommanderFile manager with FTP support
Win SCPFree and open source SFTP GUI client. Despite its name it's not limited to SCP, but works with SFTP and FTP/SSL too.
WS_FTPFTP and SFTP client