I assume you are not American since you didn't specify.
https://www.primedope.com/online-pok...ke-calculator/
Unibet has good rake at micros (lowest at Nl 4 and NL 10) and I have liked playing there. Pokerstars and Unibet have equal rake once you get up to NL 25. Unibet has better rakeback at high stakes than micros. I don't know about stars rakeback. Maybe there are some other sites out there that have great rakeback.
At micros all somewhat popular sites have decent traffic, unless you play at very unusual times of day (
https://www.pokerscout.com/ ). Unibet is pretty soft at micros, they banned HUDs. But probably every site is reasonably soft at the micros.