I've been looking for alpha projects for a month and here are the top 4 I found (all early stage):

1. Lighter / @Lighter_xyz

This is a perp DEX whose main feature is {almost} zero commissions. The project is currently in beta, and access is strictly limited to codes.

Available activities: trading and farming points (code - 4VYF7ABP3LPT).

2. Ethos / @ethos_network

A new project within the InfoFi narrative, the essence of which is to rate X users based on real reviews from other users. Access is as strictly limited to invitations.

Available activities: write reviews, maintain streak, invite users.

3. Neutrl / @neutrl_labs

Neutrl is building its synthetic dollar - $NUSD, which will yield by harnessing exclusive OTC market strategies. Last month they closed a $5M seed round.

Available activities: add your email to the waitlist on the site.

4. YO / @yield

This is a yield DeFi protocol that automatically moves funds across the best-performing pools in different blockchains.

Available activities: participate in $yoETH, $yoBTC, $yoUSD pools ($yoSOL will be added soon).