have you tried looking on Basecampleasing.com ? they typically;y get a lot of leases all over the USA
and have you tried just knocking on some doors in places you like to be at? never know, now is a decent time to ask, before harvest time and all!

can also try asking your local game wardens, if they know of farmers that have crop damage issue's , might lead to a area with land owners more willing to allow hunters on there lands! from there you an always talk leasing too if you desire that side of things

if your a church goer, many churches have boards you can place adds on or the likes, never know till you ask, even with the corona crap going on, many have online things you cvan try to post(face book for churches and so on)