I would make myself familiar with GGPoker.
I prefered Stars also but they are in decline for years.
Mtts barely making their guaranteed prizepool, mostly it's overlay, they temporarily discontinued their flagship tournament the Sunday Million due to poor numbers.
On GGpoker however you have a broad selection of games, with almost any Mtt exceeding their guaranteed prizepool.
Also their rakeback program is far superior to the one from Stars.
But you're not the only one considering moving because PS closed their services
One funny guy here in the forum actually considers moving to Argentina just for poker.
Suppose old habits die hard, that's why people still stick to PS.
I play there too sometimes still but moving because of a pokerroom? That's crazy to me ...
I can understand it for people who actually make a living with poker to see which country the best option has but for recreational players , that's just bullocks
My two cents on the issue 🙃