Shang Chi is an iconic character and his entrance into the filmic MCU was well deserved.
A little Shang-Chi history
The character first appeared in Special Marvel Edition issue #15.
The Shang-Chi Funko Pop! Line
As a subset of the greater Marvel lineup (one of the most extensive Funko Pop! series), Shang-Chi and the Legend of the Ten Rings occupies 13 different mold numbers, all released in 2021. Walmart, Target, and Gamestop each received one exclusive figure. The series includes 3 different depictions of the lead character, Shang-Chi, 2 depictions each of Xialing, Wenwu and Katy, and 1 depiction each of Jiang Li, Razor Fist, Death Dealer and The Great Protector. Let’s take a closer look at each depiction. All figures are bobbleheads.
843 – Shang-Chi Kicking

I’d have to take this as my favorite depiction of the legend himself. The hair is slick, the kick is swift, and the head is a bobbling. I’m kinda digging 843. Get a better view in the unboxing video embedded below.
844 – Shang-Chi (With Bow Staff)

The bow staff does represent and iconic moment in the movie. Again with the bobblehead.
845 – Katy

846 – Xialing

847 – Wenwu

848 – Jiang Li

849 – Razor Fist

850 – The Great Protector 6″

I can see why The Great Protector is emerging as the most popular of the set. Other than some Shang-Chi figures signed by Simu Liu, and of course the red variant #843 mentined
851 – Wenwu (Walmart Exclusive)

852 – Katy with Fire Extinguisher (Target Exclusive)

853 – Death Dealer (GameStop Exclusive)

879 – Shang-Chi (Marvel Collector Corps)

880 – Xialing (Marvel Collector Corps)

Shang-Chi Funko Pop! Variants
There is a red variant of the Shang-Chi Kicking #843 Pop. This special was offered as a Hall H exclusive at the 2022 San Diego Comic Con. Only 500 were produced, so this variant is tough to come by and can fetch some serious dough on the secondary market.

Unboxing
A quick unboxing of 4 of the more popular characters.