Limit Number of Tags

hi,

I would like to limit the number of tags that would be shown at any one time. Say for example, 25 of the latest tags used in posts. How should I do that?

This is the blog in question and as more and more posts are made the list of tags seem to go on forever…

https://onlinediamondbuyingguide.com/blog/

Any help would be appreciated. Thanks a million