I personally believe it's pretty likely aliens exist, considering how vast the universe is
but also considering how big it is I mostly doubt aliens have visited earth, maybe they have, maybe ancient aliens are a thing[and no I'm not talking about like, the shitty conspiracy show on history, I'm thinking more alien colonies on earth long before human civilization was even a thing] but I doubt UFOs are around, perhaps other distant planets have made civilizations of their own but I don't think aliens have reached earth, at least yet and I'm pretty fucking sad we likely will never actually come in contact with any during our lives
I also personally Imagine aliens probably won't look like us, at least completely, maybe some will be at least humanoid, but I think Lovecraft kinda understands that aliens probably will look, well, alien to us, and if they're intelligent, we might have trouble understanding them and miscommunication leading to the end of us all is a decent possibility in the first contact
speaking of the first contact, considering how humanity has reacted to other races we've 'discovered', chances are the first contact might not be peaceful and might involve a war, with either us or the aliens starting it, I'd say it would be a 50/50 chance as to who starts it.
If that does happen ultimately I hope it just would end in a peace treaty instead of annihilation, but that's probably a naive thing.
Extraterrestrials are an interesting topic to me, let's just leave it at that