You need to create the batch file yourself. Marlin's is pretty simple but will vary depending on the pool you choose.
Siamining has their instructions here
https://siamining.com/help
Luxor Pool
http://sia.luxor.tech/setup#3
Nanopool
https://sia.nanopool.org/help
Mining Pool Hub
https://siacoin.miningpoolhub.com/index.php?page=gettingstarted
f2pool
https://www.f2pool.com/help