So I recently conducted research on the popularity of different brands of coffee and espresso machines in several English-speaking countries (meaning for home use). Conclusions I made based on two sources of information.
1) Various reviews, on popular in their countries venues
2) The answers of ordinary users in various forums devoted to the theme of coffee and kitchen equipment. I will give examples of such sites for 2 English-speaking countries.
For Britain - https://www.bestadvisers.co.uk/best-coffee-machines
Strangely enough, but in this case, indeed, the reviews of the forums and the survey really coincided, indeed a lot will be used by coffee machines from Bosh and Krups. However, the Nespresso models are also popular
For the US - https://www.cnet.com/topics/coffee-makers/best-coffee-makers/
Bonavita and Bunn on review are the best in this country, but the Hamilton and Black & Decker are really popular among the population.