Just skimming some of the replies here makes me think you will get better advice on the Bogleheads forum [1]. Despite the minimalist appearance it is actually a great place to get sensible financial advice. I would start with the wiki page on managing a windfall [2], then search through older replies to similar questions. This kind of question gets asked there a lot, so there should be some recent threads.
[1] https://www.bogleheads.org/ [2] https://www.bogleheads.org/wiki/Managing_a_windfall