1) if your insurance is ge, you may convert your titanium to ge card (still 1% up to 1k)
2) if your insurance is aia, apply for pbb aia 2%
3) if your insurance is tokio marine, get mbb2cards and use your amex to pay during weekends for 55%
4) other than these, you may try hlb essential for 1% just like ocbc titanium but excluding petrol

You may consider for Watami Credit card (3% rebate), more information as link below
https://forum.lowyat.net/topic/3609846

sorry, for mbb2amex is 5% not 55% (typo).

for aeon watami, 3% only up to rm5k per quarter. but your monthly payment already rm3-4k = rm9-12k per quarter.