Suggestions for supplementary usenet server and indexer

Hello folks. Due to comments here, I've ended up with Drunken Slug, NZBGeek and altHUB as my main indexers, with usenet.farm as my main provider. I do have xenna and tweak free tiers as a supplement.

Problem is, more and more, I see failures, and hoping to end up with an additional provider on another backbone, but just not sure who the best value is right now.

Soooo, who do you suggest, of the current providers, as a new one to add in to the mix?