First off, it's both 1.17 and 1.16 compatible so no need to worry about this.
https://www.spigotmc.org/resources/evenmorefish-▪-extensive-fishing-plugin-▪.91310/?__cf_chl_jschl_tk__=pmd_022a6103035632ba4ef67959fae6599a6fccef3b-1627581304-0-gqNtZGzNAjijcnBszQjO
It's similar to the more flish plugin only more rich in features and I would like it to be added so people who are looking for a vanilla+ smp feel can add it to their server.