But even your local people may not be very proficient in your language, they may be immigrants, or working in the area or just visiting. If you know of a significant local community that uses a different language maybe you should try to cater for them. You might find one of them willing to do the translations. The global language of the Internet is English, partly for technical reasons, and most 'net users can make some sense of English if you keep it fairly simple, so that has to be the obvious choice if it's not your local language. If you start in English then the choice of other languages may be down to who you can find to translate for you, and where you think your readers are most likely to come from.
All languages use 'character sets', and the bottom half of each character set is English.
The top half can be one language, such as Japanese, or a group of languages such as Western European. Whatever language you're starting in, this technical aspect can make a difference. As all Western European languages use the same character set, it would be much easier to translate a French site into Spanish than into Chinese - but it's easier to display a Chinese site in English than in Japanese. They might not have time to be directly involved with your site, but if you are interested in a particular language they might be able to offer some general advice.