Shops that sell used Cisco routers/switches

Dear All,
I am wishing to setup an affordable home lab for CCNP training purposes.
I have been searching online for lot of switches/routers on sites such as ali express, souq etc. But there are expensive equipments over there. I wish to purchase second hand equipment to setup a cheap home lab. Does anybody here know where in riyadh shall i look for used routers/switches as i have searched the computer market but they also say they don't store used equipment.I shall be grateful for any advice.  Thanks

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