Self mad fm transmitter looking for a singaal amplifier

[mister-nobody]

I have a self mad fm transmitter and as a amateur fm transmitter in the Netherlands my range Legal may be 61 meater or 200 feed. I am looking for a amplifier That can help me by that job. But the only thing is That it must not to pouwer hungry because I run it all of a pouwer bank I have 2 1 in the fm transmitter and than 1 for the amplifier. I don't know my way in the world of amplifiers so I hope That some one can help me it's is not a problem if it is a pcb becas than I will built something around it (I am looking for links to something that can help me) 

[mister-nobody]

1 hour ago, Grumpy Old Man said:

Suppose you mean a TX amplifier. Which frequency range, how much watts do you want out and and what is the current transmit power of the transmitter?

https://nl.aliexpress.com/item/32921988463.html?spm=a2g0o.detail.1000014.52.511b4609s52omV&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.33416.213724.0&scm_id=1007.33416.213724.0&scm-url=1007.33416.213724.0&pvid=a230512d-46c8-4672-b636-f971a120d9a5&_t=gps-id:pcDetailBottomMoreOtherSeller,scm-url:1007.33416.213724.0,pvid:a230512d-46c8-4672-b636-f971a120d9a5,tpp_buckets:668%230%23131923%2350_668%23888%233325%2312_23416%230%23213724%230_23416%234721%2321967%23343_23416%234722%2321972%236_668%232846%238113%231998_668%235811%2327189%2390_668%232717%237563%23546_668%231000022185%231000066059%230_668%233422%2315392%23937_4452%230%23214000%230_4452%233474%2315675%23324_4452%234862%2324463%23946_4452%233098%239599%23393_4452%235108%2323442%23429_4452%233564%2316062%23424

 

this is the one that i use 
50 Wn / 50 Ohm is what i want out