Hi i am trying to answer this question however im not sure that if /usr/local/bin is the best place or /opt could i get any help on this please
You installed the software initially in /usr/local/bin. Given what the program does say where you think the best place to put it might be and why. This might actually be /usr/local/bin so do not assume it has to be a different location.
For software which has only a single/couple of binaries, I use /usr/local/bin .. but as soon as it becomes a large bundle (such as Oracle Database), I place it in /opt/company/product such as /opt/Oracle/12c/