Don't use MP3 format - or any other lossy format, for that matter. While it would be nice to edit some of the music before putting it on CD, you mentioned you're not interested in that kind of stuff. So your best bet would be an all-at-once unit.
What's your budget? There's units available from $20 to $2000.
Considerations:
1. you really should match whatever noise reduction your tapes were recorded with. With commercial tapes, that means you should get a recorder that has Dolby B.
2. Take care with your analog to digital conversion. CDs are encoded with a 2-channel signed 16-bit Linear PCM sampled at 44,100 Hz standard. Look for this standard when shopping for a converter. Any other encoding used will have to be re-encoded to this standard before being burned to disk anyway. And you never gain quality through re-encoding. You can only lose quality. So encoding it to the right standard only once will yield the best results.
3. There are actually better encoding standards available. You could rip your tapes to a computer with much higher quality encoding. But to make an audio CD, you MUST use the aforementioned Sony standard or many CD players will not be able to read it.
A good option is to buy a CD recording unit and hook it up to your cassette tape player.
https://www.amazon.com/Philips-CDR775BK-Dual-Deck-Discontinued-Manufacturer/dp/B00004STHL
This option will give you the chance to equalize your audio before recording it, depending on your stereo system, of course.