Over the counter MAOI for psylocybin

Hey, A friend told me that I can buy syrian rue seeds and eat about 3g of them before eating mushrooms to enhance and prolong the trip

After reading some posts here it seems that syrian rue is just one option and that caapi is more popular due to easier side effects (also seen mentions of black currant, passionflower and a few other options)

I found a way to get syrian rue seeds from some small shop, but when I look in Amazon for syrian rue (for extract/tincture) it only finds this extract which I'm not sure is the same

And when I look for Banisteriopsis caapi it finds other stuff like types of tree bark, and barely any results for caapi itself - the one relevant result might be okay but I want to verify

So TL;DR what MAOI is easiest to get a hold of and has the least amount of negative side effects (and easy to dose) - to be used alongside psylocybin?

Thanks!