GrowthHackList - 100+ curated growth hacks for makers + early stage startups
HACKTIKA - Fill your Growth Idea Backlog by the Best Growth Hackers
Content Genie by ContentFly - Generate article ideas that will grow your traffic
Big Ideah - Evaluate your SaaS business ideas
Content Marketing Stack - A curated directory of content marketing resources
NicheGenerator.nyz - A funny solution to start with people, not ideas or products.