I started with watercolors because they survived from my primary school times, later bought a semi-professional watercolor set to finally end up with gouache, and I will probably stay with those. I do have acrylics too (I painted with them literally once, image below), but watercolors and gouache are so much more compact in working with and cleaning up, I love that aspect
Every visual artist needs to learn to sketch, get 2 pencils, 2H and 4B would be my go-to. Standard 80mg copy paper is somewhat lacking, not exactly bad but I don’t like it, even then you don’t need a professional sketchbook, notebooks are pretty good, actually. If you get into paints, don’t repeat my mistake, watercolors are the least forgiving medium Ive tried. Crayons are fine, chalk I have no experience on, you could consider pastels
To be fair there was a transformers spinoff for younger audiences with the bots fighting infrastructure failures and natural disasters instead of evil robots, Streetsweep would fight right in
Alright, but I gotta warn ya that you will need to work hard to get them to show color of any intensity. On the upside that is probably the most possible blending control you can get with physical medium