@Otis_Scops @jblue @pvonhellermannn @DarkOptimism
I'll respond in instalments to you.
#Millet to my surprise, is a relatively active tag here, just followed it, and something to follow-up. I get on well with it, culinarily, digestively and metabolically. It's also available in bio = organic in supermarkets here. I will normally germinate it before cooking, so growing some on would not be a big leap, apart from preparing a bed. Need to look into what it likes. Only issue I have with it here is, it's ridiculously overpriced as a foodstuff - like about €4 for a plastic 500g packet, meaning I tend to buy better value things. But as crop seed, price would not be an issue. A similar plant I have been part of an experimental project to grow, back in the '80s - '90s in SW UK was #amaranth. I'm tagging that as encouragement to others to do so, not because it's active, /yet/. https://en.wikipedia.org/wiki/Amaranth_grain
#buckwheat is another.