Galdraheim is a modded survival server with over 200 mods, so there is plenty to mess around with if you like big modpacks and a bit of freedom. It can also run on lower end PCs, but you will want at least 16 GB of RAM to keep things smooth.
The server includes a bunch of well known mods like Tensura, Ars Nouveau, Botania, Minecraft Comes Alive, Tinkers' Construct, Ice and Fire, and Create, just to name a few. On top of that, there are claims, RTP, and other useful stuff, so you can settle in, explore, and build your own place without feeling too boxed in.
If you enjoy modded survival with room to roleplay, build, fight, and do your own thing, Galdraheim is made for that kind of playstyle. You get a lot of freedom to shape the world as you see fit, and there is enough going on here to keep both builders and adventurers busy.