I usually just use SMB shares within my LAN. It serves my modest needs. I have used WebDAV or FTP in the past. Depends on the specific use. Away from home, VPN

I usually just use SMB shares within my LAN. It serves my modest needs. I have used WebDAV or FTP in the past. Depends on the specific use. Away from home, VPN is essential. Too risky to just forward ports these days.