Have you looked into the immigration laws in those countries? That's really the first place you should start when it comes to narrowing it down.

I agree with jay: unless you're already an EU citizen, you'll need to look at the visas and immigration rules for each of the countries more than just which languages to focus on.

I don't know a lot about their immigration rules or LGBTQ+ situations. I moved to Germany because of the work visa options I had at the time.

Base your choice on where you're allowed to live and work legally first. Then learn the language. All these countries are relatively conservative in areas so it really depends where you'll be staying. Obviously big cities, you'll be fine. More rural places you might struggle with LGBTQ+.

Dutch is apparently a hardish language according to a Dutch person I know online, but it might be worth it to learn!

Even the Dutch don't speak Dutch 😅, they all speak English.

Are you American?

I lived in Wales for a year and I will tell you that I got on quite well with Spanish and Portuguese people the most.

Their "personalities" are closer to American.

Such as they smile when they greet you.

You under estimate how much this matters.

I was pretty sure every welsh person I interacted with , disliked me because they all seemed to be stone faced.
While visiting Germany I encountered the same. Slightly worse. Pretty sure their resting face is an actual frown.

I constantly felt like I was inconveniencing everyone. Even buying a ticket or food.

I knew i wasn't. That it was cultural. But I couldn't shake the feeling that I was disliked at every interaction.

They see the fake friendly smiles as fake and pointless. So they don't do it.

Maybe you could get used to it. But to me it felt like constant social cues that I was not welcomed.

During my year in Wales I mostly hung out with a guy I met on reddit also doing a study program. He was from Portugal and we got on just fine. He was also confused by British etiquette.

The idea of learning three languages through an app at once in a short period is silly. Which one of these languages do you actually stand a chance at becoming fluent in? Are you already conversational? It's a much lower bar to be able to hold a conversation with someone who's trying to teach you the language and is patient with you than what's needed for every day life. But if you can meet that bar today you'll probably be able to learn the language well too.

Come to the netherlands, im gonna move there once i turn 18+

Are you European? If so, anywhere you want, one of the huge advantages of the EU. As an Australian I gave up trying to get into France, other then on a tourist Visa. I am not George Clooney.

If not, you do know you will need a visa and have you checked you qualify before you make your plans ?

Hope I'm not joining to late in conversation but as someone from Portugal I can say the LGBTQ+ situation here is quite OK, people are tolerant and if you go to a big city like Lisbon or Porto you can find lots of community support.

The weather is also nice, winters and short and the temperatures are mild most of the year, even though it can be really cold for a few days in the winter. Summers can be tough due to the intense heat but there is AC almost everywhere and near the coastline its more tolerable.

As for immigration things have been better in the past and there is starting to be a bit of resentment for immigrants, especially those with lots of money that contribute to make life more expensive for the folks living here. The immigration laws have also been tightened and there were some changes to the entities regulating immigration, I advise you to look for information at the AIMA portal and see what applies to you.

Oh, one thing I forgot about the language, Brazilian Portuguese is not that different from European Portuguese, there are some expressions that are different but we understand each other very well. The accent makes it look different but its a matter of getting to know the language

To me, Dutch has been the easiest language to learn so far. Pretty simple grammar, similar vocabulary to English. Word order is the hardest part for me (I'm still making mistakes), the second hardest thing is the pronunciation. Pronouncing 'g' without hurting your throat can be quite tricky.