If you want the same world building and hadn’t given it a try, Elder Scrolls Online is still great, can be acquired for cheap (even the base game has a lot of content), and be played almost fully solo!

If you didn’t mind the “floatiness” of Skyrim Combat, ESO is great, has a lot of world building and exploration, can be quite immersive at times, and basically has the look of a modded Oblivion.

I spent a good 400h on it, mostly on lore discovery, main and side quests, and farming not for equipment but to get furniture for my house! (and if I recall I still didn’t reach the max level, not a pro-player).

I never played it as an MMORPG, but more as a coop RPG while still playing solo most of the time. So I can’t judge on the quality of the MMO aspects (though the cyrodil constant battle system is quite fun and intense).