I've seen a few posts recently on seller-finance. In my opinion seller finance is one the best way to go, specially if you can do 0% interest. If you're interested, you could structure better deals when it comes to land.
Since most people typically target single family, multi-family, land is a great opportunity to get started as well, this applies specifically to Texas as there's hundreds of thousands of land parcels ( Specifically Vacant Land).
From experience, here's what I'd suggest you look for: (You can easily pull these types of lists from your county appraisal district or 3rd party services)
Property Types:
Vacant Land
Agricultural
Commercial
Broken down into Specific Property Types:
Mobile home lot
Agricultural (NEC)
Residential Acreage
Residential Lot
Multifamily Acreage
Multifamily Lot
Agricultural Land
Industrial Acreage
Industrial Lot
Commercial Acreage
I'd look for properties that have been owned for at least 10+ years, and large acreage (this depends on you, I'd say more than 40+). I'd also look for places that are about an hour away from Major cities (for example in Texas: Brazoria, Galveston, Bexar, Denton, Montgomery, Nueces, Waller, Fort Bend, Travis, etc.), there's plenty of land. If you can find something near the highway (i.e. I-10 in San Antonio) that would be fantastic.
Additionally, something that no one ever mentions is that many of these parcels have a 0 address, such as "0 Road", so many commercial real-estate software may not have these which is a competitive advantage that you'll have. The only thing to note about these is to ensure that the property has road access and is not locked between other properties.
I'd exclude:
-Trustee-owned properties
-Corporate-Owned Properties
Here's the best part, you can work out a seller-finance deal with the owner, specifically to get a 0% interest. You can explain the tax hit they'll be taking if they get all the money up-front, and instead offer a payment plan in which they'll get what they want (or more), while at the same time allowing you to market the land and sell it to a developer or a buyer that may be interested in your area.
This is taking seller finance to another level in which you get a 0% loan while at the same time sell the land for a high market value!.