What tandem circuit breaker will fit square d home line panel

Homeline is just a brand of SquareD. Do you have a model number. That will tell if tandems will fit.
Also, on the sticker inside the panel or cover will be a listing of breakers that fit.

Homeline is just a brand of SquareD. Do you have a model number. That will tell if tandems will fit.
Also, on the sticker inside the panel or cover will be a listing of breakers that fit.=Dr. of electricity Homeline is a square D product the bus bar will only accept a homeline tandem breaker. Can be bought at Lowe's or Home Depot.

=Dr. of electricity Homeline is a square D product the bus bar will only accept a homeline tandem breaker.Not sure why you quoted me, but I'll clarify. Not all HOM panels/busses/spaces will accept a tandem. And without he model number, or a photo, of the panel we cannot tell for sure.