Edit: Damn it, Buddy. The oracle price is just over $20k where I sit ($20,063). Went as low as about $20,275 before it started to fall back... Now $19,977 here. Sigh, edit, edit.
CB only gives the spread at the last book retrieval. I've considered adding some more info in there too but haven't had the time recently to really think about options.
My primary desktop ticker is an oracle based on an average of two different price oracles. The primary underlying oracle is, in turn, based on data feeds of Bitcoin pricing data from multiple price data publishers. The underlying data is pretty sophisticated, and includes confidence intervals—very important, those confidence intervals!
(Not naming names, because this is all somewhere in altcoinland, in an environment I do not much trust. Ping me if curious. The primary oracle caused a cascade of wrongful liquidations by mispricing BTC at $5k in September 2021, due to a coincidence of simultaneous “errors” from two different price feed publishers who, due to “software bugs”, priced Bitcoin at exactly zero. Zeroes severely drag down an average! FWIW.)