Batik is lovely to make, but challenging because you use melted wax.
After one bad burn, I stopped teaching it in a crowded classroom.
Now, there are cool wax products and resist pastes. You need vats of dye and an earth-friendly way to dispose of the used dyes and wax. I'm sure you can do a lot of research online. Making yardage might be fun, might be boring. I am Queen of Tie Dye (38 years of teaching middle school art). Dip dying , marbling, etc, is easier. True batik is ART .