FilmCorp has uploaded some remarkable videos, size comparisons with all the Gojira/Godzilla monsters, their fire breath, and their rival titans. Take a look.

Evolution of Godzilla:

Rendered in Eevee by Blender, edited in Adobe After Effects, Premiere Pro, Audition.

Evolution of Godzilla’s atomic breath:

1955-1978 Godzilla models not made by FilmCorp.
Godzilla Heisei, Shin, and Godzilla Earth made by ByNEET.
Showa and Final Wars Minilla, and Godzilla Ultima Base Sculpted by Zul – https://twitter.com/ZulhazreenZulk1
All others made by FilmCorp.

Titans Size Comp, 2014-2019:

Music by: nells – https://www.fiverr.com/nellss
Godzilla Blue Oyster Cult Synth Cover by Kweer Kaiju
Mother Longlegs, Scylla, Methuselah, Godzilla and Mothra Sculpts by JJJ: https://www.deviantart.com/caseys42
All other models used made by FilmCore

Animated in Blender 2.8, edited in Adobe CC.

Evolution of Godzilla Monsters:

Godzilla and kaiju models by: https://snake151.deviantart.com/
Certain music queues by: SUPERTOHOREREMIX – https://www.youtube.com/user/TOHOREMIX