can I use "object pronouns" in these examples or not?

1. There are many people I would like to thank (them)
2. there's somebody I would like to thank (him / her / ...)

Question

can I use "object pronouns" in these examples or not?

1. There are many people I would like to thank (them)
2. there's somebody I would like to thank (him / her / ...)

Answer

No. The correct sentences should be:
1.There are nany peopole (whom) I would like to thank.
2. There is somebody (whom) I would like to thank.

Answer

Hello! No, you can not.
 'I'd like to thank' is an attributive to the subject 'many people'. Adding direct object ' them' will ruin the structure of the sentence as it must stand after the Verb.
You may rephrase it though ... There are many people and I'd like to thank them all/ for...
Have a great day!

Answer

No. Check relative clauses in your English textbook.

Answer

You could say - After being implored to do so by my Grandmother, I fell in love with dancing.

Answer

You could use the pronouns in the following sentence, yes.