recently saw this article here, i'm not sure if ecosia is a good solution now. their results seem mostly identical to ddg/bing too though it's occasionally better than them for some reason
qwant is good, but they geoblock certain countries including mine since 2023 or so. having to use proxy/vpn for just searching really sucks
google (and few other engines) keep giving me errors, and search results mostly empty due to timeouts (or even with no error, there's just only few results that are completely unrelated to the query)
last i checked it was very difficult to run your own instance (including voice chats)