"lump-sum dca" is the way. pay whatever bills are due, and put the rest into hodl-cache-spend wallets. keep a tight budget, learn to live off sats. do u want to be paid in sats? live as if u already do.
For someone that doesn't have any bitcoin I think it's best to start with dropping a bag, then DCA weekly/monthly. That's just in case it runs up too fast.
DCA'ing
monthly but I've been thinking about transitioning to daily (or at least weekly).