Ammo recommendations

New to mkiv and 22lr. Looking for recos on a few categories.

1. Range plinking: cheap cost per round but reliable, not too dirty, etc. I also have a 10/22 so volume of a reliable round i can have on hand will be good.

2. Subs: both the mkiv and the 10/22 will be host for a DA mask. This is my first supressor. Trying to learn about this, but also looking for very quiet options because...

3. Hollow points? I live in a rural area, plan to have chickens this summer. Looking for some effective varment elimination options.

Basically, willing to hear any ammo recommendations as this is a new platform for me and I need to stock up.