If you are looking for an easy and affordable way to create a high-quality 3D avatar, Daz Studio might be the ideal option for you. Daz Studio is a 3D modeling software that allows users to create stunning virtual characters and environments without the need for advanced technical knowledge. With its intuitive interface and feature-rich content library, Daz Studio is one of the most popular and accessible 3D modeling tools available.
The first step in creating a 3D avatar in Daz Studio is to download and install the software. Once installed, you can either choose an existing 3D character model from Daz Studio's content library or create your own custom model. Daz Studio's content library includes a wide variety of pre-built characters, clothing, accessories, and environments that can be easily modified and customized.
When selecting a 3D character model, you can choose from a variety of customization options, such as hair, clothing, textures, and facial expressions. Daz Studio also offers a real-time 3D modeling option that allows you to adjust the pose, facial expression, and even the lighting of the scene in real-time. This functionality makes creating 3D avatars in Daz Studio even easier and more intuitive.
Once your 3D avatar model is complete, you can export it to a variety of file formats, such as OBJ, FBX, or Collada, and use it in other applications, such as games, animations, or even 3D printing.
While creating 3D avatars in Daz Studio can be easy and accessible, it is important to remember that the quality of the final result depends on the user's 3D modeling skills and creativity in personalizing the character. Additionally, it is crucial to respect the copyright of any elements used in creating the 3D avatar, such as clothing, accessories, or textures.
Below is an example of an avatar I created during a workshop about creating avatars. The 3d custom client was Loriane Del Puppo. The avatar was entirely created in Daz Studio.
The deadline for this avatar was 3 days, so I had to find a quick solution. I could have used Face Transfer with a photo of her, but as I felt that the character P3D Imogen was pretty close to her appearance, I chose to create her entirely with the morphs available. I also used Genesis 8 Female Head Morphs to adjust some features of her face and to approximate even more to her appearance. Those morphs are essential to make custom characters. I made a set o Japanese and Chinese girls using just them. For the scenario I used i13 Executive Office Environment.
For hair very similar to hers I chose Hair and Glasses for Genesis 3 and 8 Female(s) by Out of Touch who has very realistic hairs.
The clothes were, Blouse - dForce Office Outfit for Genesis 8 Female(s), Pants and shoes - Modern Lace Casual Outfit for Genesis 8 Female(s), and Jacket - Boot Look Outfit for Genesis 3 and 8 Female(s). The clothes I purchased in promotions, so you can buy items at $1,99 if you wait for sales. 
And finally, in the last day I did a short animation. The lip sync was done in Daz Studio 4.15 32bits. It's the only version which has the free Lip Sync plugin.
In summary, Daz Studio is an excellent option for creating high-quality 3D avatars, especially for those who do not have advanced technical knowledge in 3D modeling. With its intuitive interface and feature-rich content library, Daz Studio allows anyone to create an impressive and personalized 3D avatar.
If you have any doubt, let me know commenting below.