I used to watch a lot of different anime during late teens for some years. All of Naruto, Death Note, Monster, Bleach, Code Geass, Sword Art Online, Cowboy Bebop, Madoka, One Punch, Steins;Gate, Samurai X, Attack on Titan, Full metal alchemist, , etc, are just the ones that come to mind.
Recently I thought back on this, and how many shows came out season after season, that I really enjoyed. I wondered how many shows must have come out in the last ten years since I stopped paying attention because of, life.
The first one I thought of giving a go was Frieren. I don't know if it's me that changed, or that it just isn't for me. Either of which are fine. But I just couldn't get into it. It seemed so utterly boring.
Not sure what my point is... Maybe to ask if it makes sense regarding Frieren, and whether it gets good after some episodes, or of it just isn't for me any more.
Maybe also to ask for other recommendations from anyone who might feel the same.
Frieren is a slow burn for sure. I understand it is not for everyone, and that's okay.
To me, it's the best anime I've watched in a while. The slower pace lets scenes breath and the melancholic undertones resonate with me right now. Isekai has really flooded the market right now and to me this is such a breath of fresh air.
I think with the anime you listed there is definitely an anime in the current or recent seasons that will speak to you. I recommend Mashle. To me it's One Punch at Hogwarts.
Everything you listed is mostly carried by action scenes (except steins gate), while Frieren is drama. I also mostly watch action anime, and I need the right mood to watch drama or slower show.
Since you enjoy action anime, here are some recommendations similar to your list: Jujutsu Kaisen, Demon Slayer, Black Clover, Chainsaw Man, Hell’s Paradise.
Also check out dubbed versions as they improved a lot last ten years.