There are many ways to create your crochet shoes. To me this is the most basic shoe shape. This is both a how-to shape the crochet shoe as well as a pattern.

This basic shoe shape can be made very fitting and comfy. This is a good easy way to start on the crocheted shoe journey.
In the steps below, I will specify exact numbers/sizes. They are specifically for this example only. You will probably have different hook, shoe sizes, yarn used, etc.
I am assuming you already know how to crochet and most of the terms are familiar to you.
Here I am actually using Thermal Stitch. And here in this post, when I refer to sc, I actually mean Thermal Stitch sc.
The Construction Areas of the Basic Shoe
The photos below show the different sections to be considered. I made the shoe to the right in different colours to further illustrate the different sections. Sorry that some of the photos show various colours; I had to work this post over a multitude of samples.
Pattern for the Basic Shoe Shape

Toe/Dome Section
If you find that the shoe is a bit pointy, you can start the magic ring with more stitches (eg. 10sts). And then increase accordingly to create the domed shape.
For example, if you started with 10 stitches, you would probably want to increase 10 stitch per row.
• R1: end with => 12sts
• R2: ==> 18sts
• R3: ==> 24sts
As soon as you can, try what you have of the shoe on your foot. We want a fit that is close snug, keeping in mind that there will be some stretch when you wear it.
Front Part of Shoe

In this photo below, the green part is the Front Part of shoe what we are now working on.
We will work this straight (no increase) till we get to shaping the opening in the shoe upper.
With reference to the colourful sample: work 12 Rows straight (24sts per row)
Note: You have to estimate length of your own shoes.
One of the photos below shows the approximate proportion relative to the foot.
Top Opening (curved shaping)
You will start the curved top section directly opposite the ugly line indicated above.
Here, I have 6 stitches. And I will shape the curved opening over 3 rows.
Working with the 6sts in this example, the crochet symbols show the stitches to create the curve. After the 3 rows of curved shaping, you should have 18sts (excluding the curved section).
Back Part of Shoe
In the colourful shoe sample, we are working the dark blue area.
I started with 18s and increased over 7 Rows.
R1: ==> 18s
R2: ==> 20s
R3: ==> 20s
R4: ==> 22s
R5: ==> 22s
R6: ==> 24s
R7: ==> 24s
Curving the Heel Section
Sewing Up (Heel)
Turn shoe inside out, so that the RS are facing each other.
Sew up the heel. The basic shoe shape is now finished. Just a little more tweaking (opt) before adding edging or cuff.
Edging around the Shoes
Optional: Adding Cuffs
You can carry on adding height/cuff to make a boot. I personally would recommend this as it again improves the fit and comfiness of the shoe. Below I show just one way of doing it. You can let your imagination run wild and do your own thing.
So let’s go ….

Optional: Adding Outer Soles
Below I have just tacked on the outer soles to see how it looks and whether it works. (It works!)
There are various soles you can use. Soles of flip-flops are very popular. Proper pre-cut outer soles are very hard to find (at the moment) and I suspect, will be unduly expensive. Check places like Pinterest for more ideas on adding soles to your crocheted shoes.