Suggestion for custom travel router board with integrated wifi antennas

Hi, I am looking to build a new custom outer that it should be pretty small but powerful enough to use both wireguard or openvpn yo connect back home. I personally prefer devices with internal WiFi antennas as opposed to external. I do like the Orange Pi range and noticed that many boards come with an external antenna. Is there a board they has an internal wifi antenna or two with a possibility to attach an external antenna? I couldn't figure this out from the website. Thank you!