Look these prepaid internet promos from SMART Telecom and GLOBE Telecom could save you some money:

https://smart.com.ph/prepaid/promos

https://www.globe.com.ph/prepaid/promos.html

Both top 1 operator SMART and top 2 operator GLOBE are good in the urban area that you can enjoy surfing internet and watching online videos without problems. But for rural area, SMART telecom is better and wider coverage of the signal.

The https://www.tayo.ph/ website has a article shows some local vendors like
iconnect2ph.com


you can buy travel SIM for abroad:
Where to buy travel SIM data SIM for abroad in Japan Korea Taiwan Singapore Vietnam Malaysia

I would like to to travel to Japan, Korea, and Taiwan within 3 months, anyone could suggest any local travel SIM vendors to buy travel SIM for abroad ?

I found there are 3 major mobile internet operators in the Philippines, Smart, Globe, Dito. But wondering which one is better for internet surfing when stay in the Philippines ?

Here this article is listed All Licensed Manpower Agencies Contact Information for Jobs in Taiwan from https://www.tayo.ph/ TAYO Philippines ! website.

Anybody can recommend some good manpower agencies in Metro Manila for OFW to work in Taiwan ?

you may find Work in Japan Websites in www.TAYO.ph has summarized popular job websites for foreigners to work in Japan.

is there any professional job websites for working in Japan ?

you can find more online jobs on these job websites
Top 10 Job Websites in the Philippines
This is what most collective list on the internet.