This is what I use. It’s very good.
https://www.amazon.com/nippon-kodo-Mainichi-Koh-Sandalwood-Japanese/dp/B0015DAPP6/ref=mp_s_a_1_3?dchild=1&keywords=mainichi-koh+sandalwood+incense&qid=1603064963&sprefix=mainichi&sr=8-3