In early 2023, several "working" methods circulated, often involving third-party websites or specific in-game experiences.
Generally, if an account suddenly gains a large number of bot followers without the owner's active involvement (e.g., someone else bots you), Roblox historically has not banned the receiving account. Roblox Followers Bot : (February 2023) (Working Bots Tips!)
If your account has already been targeted by bots, you have a few options to clean up your profile. In early 2023, several "working" methods circulated, often
Many "free follower" tools are scams designed to steal your account. Never provide your .ROBLOSECURITY cookie or password to any third-party service. In early 2023