I use Swan for my stacking/DCA activities. I like it the most because I can give an xpub and withdraw at specific levels automatically. It does lock for 30 days but that is to protect their business from disputes. I have Strike as well but I’ve never purchased through it, only paid with sats I already had. nostr:note1f4lhc4l86nxrle0e6qrtvq4grg3g94dcp2lpcfp98h7305cxegcqhszfwk