Quite a few countries and cities do run official landing services, though the depth varies enormously. At the generous end, some municipalities operate welcome or newcomer centers that bundle registration help, orientation sessions, language course referrals, and even job counseling under one roof. Others offer at least an official newcomers' guide, a multilingual city website, or a hotline for foreign residents. Countries with formal integration programs sometimes make courses free or even mandatory for certain immigrant categories, typically covering language and civic basics.
Universities and large employers often layer their own onboarding on top, which can be more practical than the government version.
To find what exists where you are heading, search the city government website for terms like welcome center, newcomers, or foreign residents office, and check the immigration authority's post-arrival pages. Your embassy's country guide may list them too. These services are usually free, so spend an hour discovering what you are entitled to before paying a private firm for the same help.