A very important question is who is the target end user market?
Is it just the small sub-set of people who are heavily into Alt-Tech? Or do you want to reach out to the much larger global audience where the majority of people don't know and don't care about terms such as decentralisation etc?
If it's the later (which I think ultimately should be if you want the most possible users), then that really disqualifies DeCrawl and Incogne, which I unfortunately would say aren't the best of brands to begin with,
While it's fun to have animal imagery, SearchCow will end up sharing namespace with internet heavyweight Tucows.
I really like Toki as a brand. Seems a bit of a shame it doesn't already have a home in the crypto space (Tokens) .. seems like the absolutely perfect name for a crypto mascot! Some could argue that it doesn't quite pass the radio test (Toky, Tokie, Tockie, Tokey, etc), but the brevity of 4 characters really offsets that a lot and it is quite memorable and phonetically strong
Without listing them all, the phonetics of many of the brandables just aren't very strong enough to ever get viral traction in a niche that's already very established with huge brands.
Jaroo is one of the exceptions to that and actually is nice and clear. I have several 5L brandables with double "oo" as I like the logo potential of using eyes or a smiley.
I really liked your requirement of having the brand sound like a verb .. I thought it was extremely smart and forward looking ... unfortunately almost all of the candidates fail that test.
One of the few that doesn't is Vesh .. although unfortunately the phonetics of that make it something to reconsider .. lol .. "Vesh it" > "Vesh*t" > "Veh-Sh*t"
That bring us to "Search It" .. a very strong choice IMO. Although one big factor to consider is that it will never be trademarkable in the context of a search engine. Meaning that you will never be able to stop Google or anyone else from advertising "Search-It on Google". However, owning the trademark isn't an absolute must depending on the context and your business objectives. Almost all "Keyword Domains" have that same issue, but that doesn't stop many from doing extremely well. Also, because it is overly generic and so exact on what you're doing, as a brand, you'd pretty much always need to use the full "SearchIt.com", making it a little longer than you were hoping for. Again though, the domain is so specific that the overall benefits could outshine the little issues against it.
Overall I'd say by far the 2 best choices (in no particular order) are SearchIt and Toki. I'm really sorry to everyone else, but the rest really don't come anywhere close. Forced to choose a 3rd would actually be Jaroo mainly because the other choices really aren't strong phonetically or for other important reasons. If your target audience is exclusively those deeply into Alt-Tech then I suppose DeCrawl could be something to consider, but to someone even middle ground in Alt-Tech awareness, the "De" is a negative and at first I really didn't even get the significance of the name until I saw someone talk about it above.