As you know there's a portal at https://www.wikivoyage.org/ .
The raw HTML is editable by sysops here and automatically updated from Meta:
https://meta.wikimedia.org/wiki/Www.wikivoyage.org_template
If you'd like to suggest changes, try them locally, and post them to a subpage, e.g.:
https://meta.wikimedia.org/wiki/Www.wikivoyage.org_template/Temp
then point them out on the talk page:
https://meta.wikimedia.org/wiki/Talk:Www.wikivoyage.org_template
One important design principle we try to go for is to avoid English-only text so the portal is usable without having to switch languages.
Cheers, Erik