There's some overlap between the 2 videos below.
Give them a look if you need more context, though the 2nd video is probably best for that purpose.
View: https://www.youtube.com/watch?v=_LQacSdJt7c
Top 5 picks:
Best entry level: 0:43 - Gigabyte Z390 UD
Best value all rounder: 2:08 - Gigabyte Z390 Aorus Elite/Pro
Best of the best: 3:50 - Gigabyte Z390 Aorus Extreme /MSI MEG Z390 Godlike
Best Micro ATX: 5:30 - 4 options
Best Mini ITX: 7:00 - Asrock Z390 Phantom Gaming ITX/AC
View: https://www.youtube.com/watch?v=v5NDtS8za8g
BEST ULTRA HIGH-END Z390 MOTHERBOARD: Gigabyte Z390 Aorus Extreme
Z390 MOTHERBOARDS WITH PLX CHIP: ASUS WS Z390 Pro /SuperMicro C9Z390-PGW
BEST Z390 MOTHERBOARD WITH 10GbE LAN: ASRock Z390 Taichi Ultimate
BEST MINI-ITX Z390 BOARD: ASRock Z390 Phantom Gaming-ITX
BEST MICRO-ATX Z390 MOTHERBOARD: ASUS ROG Maximus XI Gene /Gigabyte Z390 M Gaming
BEST VRM FOR THE DOLLAR: Gigabyte Z390 Aorus Master /Gigabyte Z390 Aorus Ultra /Gigabyte Z390 Aorus Elite /Gigabyte Z390 UD