If you want to scratch a similar itch, and have not already, try Guild Wars 2.

It does have microtransactions, but only because they have no subscription fee and they are mostly cosmetic with a few rare exceptions.

It also has no FOMO except cosmetics from certain festivals, which you can also buy in the next year.

It is still the best MMO on the market IMHO, because it values your time and money compared to other games in the genre.

Played the demo last year and instantly bought it now. Very chilled out game so far.

It also has alot of palm-oil in it so it is another reason to avoid it.