Searx and SearxNG support a few of these, but instances get blocked and unblocked left and right. eTools is a metasearch engine that uses commercial APIs for i

Searx and SearxNG support a few of these, but instances get blocked and unblocked left and right. eTools is a metasearch engine that uses commercial APIs for its search providers, so it does not get blocked. However, each search is a bit expensive for eTools, so users might get blocked by eTools instead.