Polish names have hard pronounciation. So I can help you.
Bogdan "bawg-dahn"
Bogowid
Bogumił "baw-guw-meev"
Bogumyslaw "baw-guw-mees-lahf"
BojanBolemir "baw-leh-meer"
BoleslawBorzywoj "baw-zhee-wawy"
Bratomir
BronimirBronislaw "braw-nee-slahf"
Budzimir "buwd-zhi-meer"
Budzislaw "buwd-zhi-slahf"
Cczibor "czi-bawr"
Cieslaw "czeslahf"
Dalebor
Dalemil
Dobromir
Dobromyslaw - nickname Dobby, Dobres, Dobrosz "daw-brosh"
DragomirDragoslaw
Duszan "duw-shahn"
Gorazd
Goscimir "gawsh-czi-mir"
Goscislaw "gawsh-czi-slahf"
JaromirJaroslawJaropelkJarowit
Jarilo
KazimierzKrzesimir "kzhe-shee-meer" (shortly)
Leszek "leshek"
LubomirLubomysl
Ludomil
Ludomir
Ludoslav
Ludziwoj
Lutobor
Lutomir
Lutomysl
Lutoslaw
Mieszko "myeh-sh-kaw"
MilanMiloslawMiroslawMilosz "mi-law:sh"
Mojmir
Przemyslaw "pzhemees-lahf"
Perun
Racimir "rah-czi-mir"
Racislaw
Radegast
Radomil "rah-daw-miv"
RadoslawRadovanRadowit
Radzim "radzeem"
Roscislaw "rawsh-czee-slahf"
Siemowit "shyeh-maw-wit"
SlobodanSlawobor
Slawolub
SlawomirSlawoslaw
Sobiebor
Sobiemysl
Spycigniew "spee-czig-niev"
Spycimir
StanimirStanislawStojanStojslaw
Stragomir
Swantowit
Swietoslaw "sh-vyeh-taw-slahf"
Swietomir
Swietopelk
Wacław "wats-vahf"
Wielimir
WielislawWladan
WlodzimierzWlodzislawWojmir
Wojslaw
Wolimir