2000 yaris vitz 1.0 advice ?

[BWSMG]

Hi all i am new to the forums , i just got my first car off a family member its a 2000 yaris vitz 1.0 auto . she had it for a year and never serviced it , so i am going to do the regular stuff like oil ,filter, air filter and plugs . it has 105,000 miles and the engine feels good pulls strong i have a couple of questions

is there any other things i should do ? .

what oil would you guys recommend for this engine ?

the automatic trans oil does this need to be changed?

Thanks a lot :)