Search is dead for the foreseeable future. The “alternative” engines almost entirely use the Google or bing indexes and just give a layer of privacy (that is likely broken by Google having some secret fingerprinting technique)
Some, like DuckDuckGo, ecosia, and kagi, append the index with their own but still ultimately rely on Google and bing indexes to a significant degree. Though some of these are moving towards entirely independent indices (may take years)
Alternatively you can look at other countries indices, which are independent: baidu (China), yandex (Russia), mojeek (uk)
But ultimately web search is dead. Advertising and commercialization killed it. Advertising ruins everything, anyone who works in marketing should be put on a rocket and shot into the sun