I’m not a finance professional, but I feel pretty confident in discussing a wide variety of topics because it’s a personal passion of mine. For example, I have the following in my personal spreadsheet (and a ton more):
mortgage amortization table - basically how much you’re paying off your loan each month; works for any fixed term loan, like auto and whatnot
retirement date projections
debt payoff simulations
Social Security benefit calculator - pretty specific to SS, not sure how many US subscribers we have
tax estimator - again, US-specific, and I’m happy to go into detail about how taxes work
And other topics I’m happy to discuss:
comparison of types of interest - bank interest (CD/savings), stocks (can go up and down), non-taxable (e.g. municipal bonds; US specific, but could be generalized)
budgeting - I do it my own way, but I’m familiar with multiple
portfolio composition/strategies - how bonds work, and which types you should consider as well
And probably a bunch more. I’m happy to throw together a sample spreadsheet on Google Sheets to share with others as well for anything I write a post about.
However, I don’t want to just spam this community if there isn’t any interest, or if it would just be overwhelming to people starting out. So if there’s something in particular you would like to understand better, I’m happy to help, and I’m sure others would like to add to the discussion as well.