In all of our Zoom meet ups, we all did many of those techniques on paper…I am doing the art classes on plain old lined composition paper…once dry, the paper stiffens up and is perfect for things like masterboards, ATCs, notecards, etc.
You should watch the video on when to use gesso, gel, etc. Some are used to protect pieces, others to allow markers and inks, etc. I think that link is in the paper craftalong from last year?
I use tons of spray bottles of water and liquid inks as well…I like the drips and smears…also, you need to see what coloring things react with water and which don’t…stamp inks as well…and what alcohol wipes will smear off stuff and what won’t…I have markers that are permanent and some that will drip with water…it is a learning process…
I also don’t have tons of wall space, so I use the pieces we do for backgrounds…ATCs and notecards, mostly!