You can join the pizza community on Discord to know more about pizza. !PIZZA command on comment will the author a slice of PIZZA token just like this one.
You can earn different tokens depending on the tags used. For #oneup you can earn oneup token. #spt for splintertalk.
I normally used #spt #oneup #neoxian for my splinterlands related posts. I just started in hive so this is my limited knowledge. I hope it helps.