I’ve been using both Perplexity and Kagi for searching things, and it’s working out pretty well for me. The main thing that I find Kagi useful for is filtering to Fediverse results (which tends to be mostly Lemmy threads).
It’s pretty expensive though…
Easiest solution IMO if you’re already using CloudFlare, even the free version: you can filter out certain countries. Otherwise, there’s probably other alternatives, even open source ones. Good terms to search for with your cloud provider or self hosted software may be middlewares, firewalls, serverless, edge functions, etc.