Personally, prefixes are important to me. They help me quickly find other private keys with the prefix f6f5431d25bbf.
The magic circle astro-numerological voodoo method is also very good at finding patterns very quickly. Have you tried it?
Pretty much the same solid scientific ground (and results) as prefixes.
I'm not trying to push my opinion here that prefixes are important and that you should look for them...
I've been on the forum for a long time, and there are people here who find prefixes.
I'll repeat myself! My question is for them: have they found them?
I tried the magic circle. It pointed me to people on the forum with dumb humor and inappropriate sarcasm. So I expected those kinds of answers to my question.

Well I have 4 f6f5431d25bbf7 in my collection
f6f5431d25bbf7ebf2d652ebdd4706567468968b
f6f5431d25bbf7c73fc6ba422e2c9384944e01e5
f6f5431d25bbf7c37c13d954c95c26d9332fc1fe
f6f5431d25bbf7c2c1a542f87f2b4c6fcd994ce9
Since I'm new here, I don't know if it would be rude of me to ask what I'm about to ask, but I'll risk it anyway.
My question is this: are you searching for matches in random mode or in forward consecutive mode?
Could you share all the consecutive keys where you found matches? My intention is to study the behavior of the keys and also some interesting facts.