You can search for certain fertility centers around your area to start with. Be prepared to pay in the hundreds per visit. If you can wait long-term, a healthy lifestyle + antioxidant supplements would do you good (for the male). For female, better get checked first before making any decision for IUF or IVF as those are expensive and are taxing on her health with hormones, injections etc.

I'm very PJ-centric, so the ones I've been are Alpha in Kota Dsara, Thomson Fertility Center, and I made a trip to Sunway Medical (HQ) once. All are viable options. There's supposed to be one in Puchong/Subang also, not sure the name