Where can I learn about surfactants in detergents and on clothing in depth please?

Basically I have some merino wool stuff to clean but most people who have read a little about merino wool knows that you cant use different enzymes on them and most detergents on the planet have enzymes.

So that basically made me go search around for detergents thst dont have enzymes and there's quite a few but there is two problems : Some of them are unusually expensive , like the eucalan brand scentless one is 4 litres for 90 dollars and soak's scentless brand's is 96 dollars for 2.25 litres . And then the second problem is that you have others like eco -max brand scentless, hypoallergenic detergent and other brands that have so few surfactants and such a tiny concentration of surfactants that the people who use them t say that it is practically water.

So now my questions are how can someone know if a detergent is practically water based on the surfactants in it and the concentration of surfactants? And what would be the cheapest brands of

1. scentless non-wool wash detergent with surfacfanrs that arent BS

2. and scentless wool wash detergent with surfactants that arent BS (Ive heard that baby shamppoo is an alternative but is it a long term alternative? It trully has nothing in it that can destroy certain fabrics?? Is it a cheaper alternative?)

If I have to make this myself cause itll be cheaper that way? I probably will. Or should I just use a trillion litres every time I use that eco-max brand stuff?

ALSO I dont buy anything from companies complicit in the Palestinian Genocide. So no tide brand scentless