I don’t know where to go to find someone trustworthy to go in on it with me

However, you may need to put in work to sell yourself to an equity partner, they will need to see you are a committed, knowledgeable, financially stable and trustworthy person prior to entering into a business agreement. 

My friend is a trustworthy person and have zero concerns in that regard.

Of course, if it turns out it's a great  rental and you don't need the cash, just hold it as a rental even longer, skip the 121 exemption and use the 1031 whenever you're ready to sell.If it sounds complicated, it sort of is, and you must have a Qualified Intermediary on your team prior to selling your property in order for the 1031 to be valid, so the first step would be finding a trustworthy CPA and QI to make sure all your tax docs are in order.

Did you ever find a trustworthy operator or exploration company?

I would honestly recommend you have a property manager(a good one and trustworthy one) manage your properties.

Investors decide to work with me as I am credible and trustworthy.

It might not be them, it might be family, ask for two years of employment history (Income) and the last two years of renter history (Trustworthiness).

I know that I would like a tenant pool who is credit worthy, trustworthy, and not low income.

How do you find a trustworthy lender and what should I look for?