The Only Gold

Jonah is a stiff, by-the-book banker with a 14 year tenure and Reid is a would-be usurper that is hired, in the position Jonah was hoping for, but has a big secret. This is a classic friends-to-lovers with a HEA despite all the world stacked against them.
Like many reviewers mention, this starts out very slow and you expect a so-called slow burn romance. However, the jump from reluctant co-workers to lovers felt a bit sudden. Jonah doesn't seem like he has any sexual interest in Reid at all, just a couple blushing moments and fears borne out of inexperience, but they fall into bed after a very convenient series of events. Once the relationship is established it's a very sweet romance, but that disconnect is a bit difficult to get past.
This stays at 4 solid stars because the characters are well-written and the story overall reads very realistic in late 1800s/early 1900s east coast USA. If you have a particular interest in banking or class disparity, this will definitely keep you engaged as well.