Either SMM or private network of accounts (better option). There is a method behind this strategy. Also, almost all of them are doing deconstructed mother slave method here.
Most of such accounts are artists, fake investment gurus, or babes accounts with onlyfans or CPA links.
Example of D-MS setup for music artist:
Or, as @aman1809 mentioned, you can do that with your own account (riskier):
Example of comment:
Bot used:
Or use this top comment bot on many slaves (make top comments by commenting + mass mentions on new celeb content), custom one:
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results (two top comments on @kyliejenner account):
