I’ll add planet paracord planet, paracord galaxy, outdoor bunker for brands. Via amazon or their websites.

YouTube is a great resource just search for paracord. Stormdrane and tyingitalltogether are some more to look out for.

For equipment, you need a very sharp and sturdy knife or scissors/shears to make clean cuts. A lighter to melt ends (I prefer just a normal Bic type). I also sometimes use a fid (like a needle for paracord) and a pair of small hemostats, straight and curved.

I got a pair of these after burning my fingers on melted paracord one too many times.

There are also different sizes of paracord. 550 is the most common, usually with 5 or 7 inner strands. Smaller numbers like 450 it 275 are thinner and less strong (though plenty strong for most applications). There are also micro cords like 95, with no inner strands.