What's a good place to Promote my anime opening for my manga series?

[Jwebtoons]

Looking for a place to promote my anime opening for my manga.

[RedLenai]

You can simply post the video in:

TikTok
Youtube
Reddit
Facebook
Instagram
Twitter

Obviously by also using hashtags, putting on a description and such. Still don't expect much engagement if you don't have much of a following.
You can also share from said social media platform to their own communal places, like facebook groups, subreddits, and such.

[TheLemmaLlama]

You can post the lyrics and backing track (or just a straight up karaoke version) so I can do a poorly-sung cover and link it to your comic