System Resource (RAM and CPU) usage for self hosting fediverse social platforms

I want to host a fediverse instance but I need it to be light (limited system resources). Mastodon seems to be kinda heavy. GotoSocial is supposedly very light? (but limited on functionality?) is Pixelfed much heavier? Bonfire is built on elixir so should also be light? Akkoma? Pleroma?

Also, I need it to be engaging to people migrating mostly from IG, so I do need some bells/whistles I guess

thanks!

EDIT: The instance is supposed to be hosting a community of 100-200 people. Maybe even more in the future (in which case we would probably migrate to another server)

Having a "facebook pages" / mini website / pixelfed portfolio is very functional for the people I plan to invite.