Highest converting funnel without stripe

Whats the best funnel to go for when u dont have access to stripe / PP , and best way to accept payments i can do crypto but need another mainstream one everybody can use ($50 digital product)

You must try to make checkout as easy as possible to your buyers. That means accepting credit and debit cards.
Stripe and and paypal are just ways to accept payments.
A funnel involves lots of things not just checkout. Broadly top of the funnel bottom of the funnel and middle of the funnel.
At each of the 3 stage you want to optimize your funnel for maximum conversion. That makes a high converting funnel.