Seeking advice about supported housing

Hello. I am currently 19 living in supported accommodation. I claim uc and receive pip and housing benefits under the company I'm housed with.

My boyfriend is 18 and about to be kicked out due to family issues. He doesn't claim any benifits but works about 28 hours a week at minimum wage.

I am aware that my rent will increase if I worked more than 16hrs a week as it affects housing benefit.

I am wondering, if he moved into supported accommodation but continued to work 28hrs a week what is the ballpark for how much he'd be paying and would he be entitled to any other benefits?

For reference, I am unemployed and receive housing benefit and that puts my rent at £90 a month including utilities.

Any advice would be appreciated.

Thank you.

Edit - thank you for the advice and info. It is much appreciated. The situation is now different with housing since my post so this no longer applies but is still helpful to our situation.