Active speaker are fine and you can run them as stated above. I can’t really recommend any as I have only used a few. Most people on here use passive speakers and separate power amps to tune the sound a bit more.
Paradigm
kef
Dynaudo
ATC
focal
B&W
are all highend brands that make good powered speakers with Focal and ATC targeting the studio market. Headphones are pretty good these days so just any old cheap powered speaker will probably be disappointing. What headphones do you use and like?
As passive speakers that are a lot of good used deals on here (audio mart might work better in Europe). Even a modest setup will be more enjoyable than headphones IMO (I have a bunch of headphones too). The speakers just have way more soundstage and presents.
Videos of best budget system ideas.
https://youtu.be/ZlWShSH5RRshttps://youtu.be/Fdb8wLd73Tg