Forget USB wifi dongles, buy yourself a PCI wifi card (802.11ac ideally) with physical antennas on it.
https://www.pbtech.co.nz/product/NETGBM1004/Gigabyte-Wireless-80211AC-Intel-8265-dual-band--Bl
https://www.pbtech.co.nz/product/NETTPL0751/TP-LINK-TL-WN751ND-150Mbps-Wireless-PCI-Adapter-At


