Well, you can focus on rule-based/expert system style AI, a la WolframAlpha. Actually build algorithms to answer questions that are based on scientific fact and theory, rather than an approximated consensus of many sources of dubious origin.
Despite what you might assume, an encyclopedia wouldn't be free from bias. It might not be as biased as, say, getting your training data from a dump of 4chan, but it'd absolutely still have bias. As an on-the-nose example, think about the definition of homosexuality; training on an older encyclopedia would mean the AI now thinks homosexuality is a crime.
The alternative is being extremely careful about what data you allow the LLM to learn from. Then it would have your bias, but hopefully that'll be a less flagrantly racist bias.