Reaching Out To Affiliate Marketers

Hey all, I run a general ecommerce store and am just wondering where you all find affiliates/bloggers to reach out to for backlinks and affiliate marketing? I assume the most common way is to look at competitor backlinks and use those. But are there any facebook groups, subreddits, discord channels, etc that you guys do mass outreach on? I'm not against manual outreach but it is time consuming so if there is a better way I'd like to know about it. Thanks in advance!