What do we mean by “rank number one”. This means that when someone is searching for the main category used on your Google My Business listing in your area, your business appears in the first position. It is possible to rank number one for multiple categories (or keywords) and the more a business ranks for the better it is performing in Local SEO. To use a phrase from Warren Buffet, the business has a stronger moat.
Having a strong online reputation is a very good way to win more customers as it has a wider reach than “word of mouth” recommendations. It is, therefore, a good idea to draw attention to any reviews that exist, especially good ones. This can be done by placing some of them on your website but they carry much more credibility if they are on trusted 3rd party sites.
The answer to whether you can rank in a city nearby is Yes and no. Local rank is determined by three main factors Relevance, Proximity, and Prominence. If there is little competition then it is possible to build enough relevance and prominence that your business ranks in nearby cities. But if there are other similar businesses in those cities then prominence will dominate in favour of the local businesses.