Some celebrity game designers, both indie and less so, are on itch.io, but are you after celebrities? Most of the people I follow are either friends and acquaintances from other circles, or else people I met via game jams, and as such it's a rather personal list.

Feel free to reach out!  I like the look for your game, minimalist & slick!  I am neither famous nor post interesting content (bar releasing a game 3 weeks ago!) but happy to bounce off ideas.

@notimetoplay has a good point with the jams - it is a good way to connect with other devs.  There's also a heap of discord channels out there with devs/players to chat with.  I personally like the Butterscoth Shenanigans discord, these guys have built a great community!  They also have a fun weekly podcast full of industry tips.