https://danbooru.donmai.us/posts/8122607?q=undersized_clothes+status%3Adeleted
*fanart - Alien Force Gwen outgrown her original old outfit*

https://www.youtube.com/watch?v=kVQiU8ppTo4
female ar

Possible Hulk transformation with clothes tearing off a child from a Filipino TV show. I haven't found the episode yet; I need help to keep searching. It's from the show Kakabakaba. For now, there's a commercial that only shows fragments of the episode.
https://m.youtube.com/watch?v=oq_F_btRKZU&pp=ygUWS2lkZGllIGh1bGsga2FrYWJha2FiYQ%3D%3D

baby muscle growth and clothes ripping
https://m.youtube.com/watch?v=LJhrxU9MB8Q&list=WL&index=9&pp=iAQBsAgC

https://www.pixiv.net/artworks/102677016
https://www.pixiv.net/artworks/102879111
https://www.pixiv.net/artworks/103044472
https://www.pixiv.net/artworks/103485516
https://www.pixiv.net/artworks/103706577
https://www.pixiv.net/artworks/104055730
boy TG and AP

https://www.pixiv.net/artworks/102886664
https://www.pixiv.net/artworks/104460235
female TG and AR

https://www.youtube.com/shorts/DQT0kfXuYaM
boy muscle growth

https://www.youtube.com/watch?v=cPQEB3lEaPI
boy and girl AP

https://www.youtube.com/watch?v=CWCNuxlYlYo
muscle growth

https://www.fixdeviantart.com/jav-toons/art/Old-year-new-look-Gala-TG-TF-1281540886
TG (looks like AP too)

https://www.deviantart.com/thextra89/art/Ready-for-the-Dance-tg-1350614730
TG AP

https://www.deviantart.com/maxmam/art/Frieren-1353036621
BE

https://www.deviantart.com/magicaltf/art/AP-Fox-Shrine-Summer-Practice-1-2-1359311159
https://www.deviantart.com/magicaltf/art/AP-Fox-Shrine-Summer-Practice-2-2-1359313013
AP

https://www.deviantart.com/criticalcutie/art/Wishes-sure-love-to-Rephrase-themselves-huh-1350079133
AR TG and AP

https://www.pixiv.net/artworks/105293872
https://www.pixiv.net/artworks/147743050
female TG and AR

https://www.pixiv.net/artworks/146704938
https://www.pixiv.net/artworks/146980419
https://www.pixiv.net/artworks/147486641
https://www.pixiv.net/artworks/147520337
girl AP

Please correct as below.

https://odysee.com/@MelquesedequeFeitosa:8/hikari-sentai-maskman-ep-26-os:c
male into plants

https://www.pixiv.net/artworks/147199024
boy AP