Congrats on having some funds to work with, that is one of the main issues that many investors run into right out of the gate.
I would just be cautious of asking advice on what to do with the funds on BP, or anywhere online. The advice is going to be based upon the goals/outcome of those giving the opinion. you need to be sure to align your goals with someone who has already done what you are looking to do and follow their previous action. But of course, that is just my opinion... :)
You could easily lend on real estate projects (be a private lender) depending on your Roth custodian and limitations therein. Could get 12% or more, short term.
We have two investment funds, one pays 10% fixed, another pays 12% fixed, so finding a private investment fund could be an option as they are more passive. In five years, that would be over $70k.
You could buy a turnkey real estate property, rental property, etc. Get good cap rate and possible appreciation.
Regarding the low entry cash flowing properties, we have over 40 of them and really don't see a lot of appreciation in them due to the market they are in. The cash flow may be okay, but value is fairly steady. Just our experience, different markets behave differently.
Buying notes, to me, is the same as buying real estate to flip, hold, etc. Depending on how you buy notes, you still want to buy low, sell high. We bought a lot of notes in the past, but not currently due to the market. But that is all depending on your strategy, there is always a strategy in any market.