What do you think would be better in terms of promotion and so on - to combine 3 restaurants on 1 host or for each site its own host?

Question

Google Ads

Do you think it would be better in terms of promotion and other things - to combine 3 restaurants on 1 host or for each site its own host? There will be 3 different styles

Answer 1

If the sites are within the same network, with the same brand - do it on the same host ...
if different brands, of course, it's better to hang on different ones ...
If within the same network, you can do it on subdomains (if different metros or cities) ... many nuances and all rest on your competence