Just an FYI - Since you are interested in mortgage scores know that they behave somewhat differently to activity on your credit report than other scores. When you get closer to applying for a mortgage check out the Mortgage forum for the specifics.
For example, MTG scores are more sensitive to the number of accounts reporting a balance than FICO 8 and other models. You'll likely find a lot of information in this forum as there are always datapoints and discussions regarding how one score model responds differently than other models, but the MTG forum will likely address many things that may be helpful in many ways, including getting the best out of your MTG scores before actually applying.
As HeavenOhio states above, there is a classic 8 and a classic 9 for all 3 bureaus, simply listed as FICO 8 and FICO 9. In addition to those and the MTG scores theres: FICO 8 bankcard, FICO 9 bankcard, and the old bankcard models (5 - EQ, 4 - TU, 2 - EX). In addition to those there's the FICO 8 auto score, FICO 9 auto score and older auto score models (5 - EQ, 4 - TU, 2 - EX).
Unlike MTG scores where there's only one model used, each credit card (bankcard) company, auto loan company and other lenders may choose to use any of the many available models -classic 8 or 9, bankcard 8 or 9 or older bankcard models, auto 8 or 9 or older auto models.
Each bureau (EQ, TU, EX) will provide a score for each of the following FICO models:
Some people on this forum are, or have become OCD with tracking all scores. Many people only track their FICO 8 scores (classic). Those preparing for a MTG will usually track their MTG scores. It's up to you and depends on the lender which one they will use when you apply for something. Although, you should feel safe to assume MTG lenders will review your MTG scores.