What language should a small software company develop software?

After graduating from college, I have been doing technology and writing some programs. Because I am not very proficient in it, I have never written any good things. Now I am working as a CTO in the company, and the company's technology department is about to expand, developing software in any language has always been a headache.

Because the company is relatively small, it is necessary to select a suitable talent to develop faster

The following is my opinion on the following languages.

 

I remember that I learned this from junior high school. I used to use a lot of people, but I always feel that I am not very popular with customers.

VB. NET is of course a family. It seems easier to get started, but few old birds are optimistic about him.

C #. Net Haha, this may be a favorite of the current school, no matter what school seems to have this course as long as there is a computer Major

Delphi: I like it very much. The development speed is amazing. It is a great building. I believe many companies are using it now, but I have inquired about the talent that we cannot find in this small place, only one teacher is teaching this course in three colleges in our city.

Everyone in Java said that he is good, but if we use this small company, it will be a little too much. It may take at least one and a half months to use Java for what we can do in a month, the cycle is too long, which is not conducive to the development of small companies.

PB doesn't know what's going on now. I have never touched this language in college. I heard that it is tough to deal with databases.

PHP, JSP. I won't talk about it here. I didn't get it.

Let others talk about it.

I have a brain and want to develop intelligent software recently. I don't know where to start. Come on, come on.