Rents are strong and you can do STR to help boost cashflow.

Is there something we can do to boost where they show up in searches?

Other low-cost amenities that can boost ROI include a coffee and tea station with basic supplies, a welcome basket with snacks and water, or small outdoor games like cornhole.

No need for a PMS with only one.AirBNB and VRBO can handle things for you.In the end you won't save much time with only one STR.Plus, personal correspondence really works well to boost those 5 star ratings. 

I dont know that I would allow Delegated in this scenario - lots of moral hazard and counterparty risk.

Use the slower months to refine your operations and marketing strategy to boost occupancy and revenue.

@Steven Catudalthe 'no cash flow on a BRRRR' is typically just because you are boosting the ARV and then taking out the maximum amount you can on the refinance, often using a DSCR loan with a higher rate. 

The primary advantage is the tax-deferred or tax-free growth—like other IRAs, any profits from real estate investments grow without immediate tax consequences, which can significantly boost your retirement savings over time.

If you can't see a problem with that then you're in the wrong business (or the right one depending which way your moral compass points).

Additionally, creative revenue streams like adding storage or premium amenities can boost NOI.