For you to not have some false hopes on some homes you might like, it is always the safest way to assume that the people you pay the rent to do not necessarily want their houses to be eventually owned by their tenants in the long run. Usually, when homeowners want to have their homes sold, they will usually just have the home be listed for sale, get on with the process as fast as they can and be done with it all in no time. And if ever the real estate market is getting all the success, it would mean that you will then have a really hard time finding homes that can be rented until owned, most especially on those places that you like to live in. But if the industry is not as successful as it should be and you have been finding a home in the least desirable areas of the country, it might be a bit easier for you to actually acquire of one you can be happy with.
The most basic option would be for a buyer to approach any seller who owns a home he likes, and talk to them in a way that they will accept the offer. When we try to find some homes we might like from the market and get to pick a good one for ourselves, sometimes the timeline or the period as to how long the home has been in the market can sometimes shock us. Once you see a house that has been there on the market for a couple of months or years now, chances are, the owners of that property may not be in a hurry to have some profit, or are probably just adamant about having their house rented and then eventually owned by another person. Needless to say, you will just basically have to find a home that you think will suit your preferences, talk to the owner and sway him or her into having you rent the house until time comes to finally own it, and just pray afterwards that the owner will accept your offer. Always put in mind that every single rent to own proposition out there have been properly negotiated, so always make sure that your terms are reasonable and that you can answer directly to any queries or questions the seller might ask from you about the buying of the house.
Another option would be to just actually find a service that can allow you to rent to own a home of your choice. Sellers who have their own rent to own services will technically give the buyers a list of homes they can eventually own, and they will also be provided with the necessary papers, like contracts, in order for both parties to agree together, and have the whole process be done with.