Recommendations for International Research Competitions for high school students

[Andydzy]

Hello everyone, my name is Andii and I am new here. I know this may not be a relatable question to ask, but I hope someone can help me.
I have been searching for International/European and/or American astronomy and astrophysical research competitions for the past 5 months or so. I would like to present my research works on variable stars and other areas that interest me, such as Active Galactic Nuclei.

If anyone can recommend any research competitions where I can present my work and possibly win awards, I would be grateful. I would prefer to visit these competitions online, but I am also open to attending in-person events depending on their location.

I have already participated in the IAAC Olympiades, but it's not exactly what I am looking for. I am specifically looking for competitions and to present my research work. Any help or advice would be greatly appreciated. Thank you.