Need suggestions for plugins

Hi all,

I am looking for a plugin for the following

1) When new user registers on my site with just name and email, they will get an email for a discount coupon for shopping on my site(woocommerce).

2) There will also get referral link along with coupon , so if they share link and someone registers from that referral link (even if they dont shop) just register, referral sender will get another discount coupon and new user will also get a discount coupon.

Also wanted to ask possible to send more then one coupon with different terms in single email ??

Looking forward for kind help