With the development of technology and freedom of launching TLDs, new domain extensions are becoming common in the internet world. However, .com extension remains a preferred domain extension. In fact, .com and web are indivisible. For this reason, .com domains earn audience trust and are easy to remember.
Also, this extension opens widow for worldwide accessibility. You are not limited to a given demography as it in the case of country TLDs. Hence, as long as the domain name with .com extension is available, always go for it. If not opt for other authoritative extensions.