I travel quite a bit. HDMI remains useful, as most monitors / TVs / projectors I encounter still don't have USB-C input. USB-A is also somewhat useful, as I charge various devices from my laptop to avoid dealing with too many international power adapters.
The most common ports I need are roughly: 1. USB-C; 2. HDMI; 3. USB-A; 4. second USB-C; 5. third USB-C; 6. second USB-A; 7. DisplayPort; 8. fourth USB-C.
The most common ports I need are roughly: 1. USB-C; 2. HDMI; 3. USB-A; 4. second USB-C; 5. third USB-C; 6. second USB-A; 7. DisplayPort; 8. fourth USB-C.