Take a look at this list compiled by an sdf.org member: https://gopher.mills.io/rawtext.club/1/~cmccabe/pubnixhist/ The most interesting ones for me are https://tilde.camp/, a public library of sorts, and https://tilde.institute/, an OpenBSD system. Additionally, there is dataswamp.org - but you can't use this one unless you're invited.
Pay with Monero if you can.
Self-host your own using Wireguard and OpenBSD via above services. Otherwise...
A pretty good searx instance which redirects you to better (opensource) versions of the websites by default. searx.tiekoetter.com
A Yandex/Google proxy. Yandex has better results sometimes. nigma.net
wiby.me - a search engine which only indexes minimalist sites.