SaaS owners: what's the best way to reach you, seriously? :/

I'm building a tool targeted to SMB SaaS companies and I'm trying to find what's the most effective way to reach SMB SaaS owners.

Here are the options I'm thinking:

1) high quality content marketing around SaaS (good, but too long term)

2) linkedin ads(too expensive for a startup)

3) social media (i have no idea how)

4) personalized outreach by email - not SPAM (probably the most effective, still not sure how people react)

5) networking events( I live in Eastern Europe, so...)

6) reddit, hn, etc...(not sure how effective it is for this niche)

7)producthunt (you need to be lucky to get on top)

How can I find you guys? :) - honest question

PS: my product helps SaaS companies to build and manage affiliate and partner programs

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