if you want to play with the "dirty" cashu bitcoin, cashu.me has nwc integration and lightning addresses. Coinos is probably the easiest. Newest WoS was pretty nice and it uses spark.
Discussion
I love dirty coins. Im thinking of playing with WoS again
the self-custodial aspect of being able to recover your funds(in theory at least) of spark is a pretty cool feature. From my understanding it isn't decentralized enough yet... but still cool. I can't wait for a public ark wallet! I know i have seen them use it at a conference... so it is probably close.