Hetzner

Hetzner is a hosting company and may be an interesting alternative to TransIP.

Located within the EU (Germany) - important because of GDPR
At first sight, I had the impression that they don't offer VPSs, but that might be incorporated in their Cloud offerings.
They're from Gunzenhauzen! I've once spend a night there! Not very relevant - I know :)
According to a review, their site is in German, Enlglish and Russian. Seems they removed Russian - Nice

Comparison

Comparison between a TransIP VPS that I actually use, and two comparable Hetzner configurations:

Component	TransIP C16	Hetzner EX101	Hetzner AX161
CPU	AMD Epyc	Intel Core i9-3900	AMD Epyc
Processing units	16	16	32
Internal memory	32 GB	64 GB DDR5 ECC	384 GB DDR4 ECC
Storage (NVMe SSD)	800 GB	2x1.92 TB (Raid 1 - mirroring)	2x1.92 TB
Notes	Currently (2023.08) in use	Comparable in performance to TransIP EX is Hetzner's budget line	Comparable in price to TransIP - Selected by J. AX is Hetzner's permium performance line
Price/month ex. VAT	€ 276	€ 90	€ 275

On 2023.08.22, this TransIP server has been upgraded (50% more memory: € 143,84). Let's compare prices again:

Component	TransIP C16 + extra memory	Hetzner EX101 - Similar performance as TransIP	Hetzner AX161 - Similar performance as TransIP with best CPU as basis	Hetzner AX161 - Similar price as TransIP with best CPU as basis
CPU	AMD Epyc	Intel Core i9-3900	AMD Epyc 7502P "Rome", Zen2	AMD Epyc 7502P "Rome", Zen2
Processing units	16	16	32	32
Internal memory	48 GB	64 GB DDR5 ECC	128 GB	768 GB DDR4 ECC
Storage (NVMe SSD)	800 GB	2x1.92 TB (Raid 1 - mirroring)	2x960 GB (RAID-1)	2x1.92 TB (RAID-1)
Price/month ex. VAT	€ 420	€ 90	€ 152	€ 418
Notes		Comparable in performance to TransIP - Actually quite a bit better: Dedicated instead of VPS; more memory; more storage EX is Hetzner's budget line	This is the base configuration of a server with the best Epyc CPU Hetzner offers. Except for this CPU, all other settings are the minimum settings This server costs less than 1/3rd of the TransIP server, but it already has about 3-4 times the capacity/power of the TransIP server	The only reasonable way to match the price of TransIP, is by increasing internal memory

Note that the offers from Hetzner concern dedicated servers, not VPSs.

Some other potential advantages:

They often 'elastic performance': Sometimes I had really CPU intensive tasks for which I would like to rent CPU power, but not from Amazon. TransIP doesn't offer such a thing, but Hetzner does
Testing environments: At TransIP, minimal contract duration is 1 month. I suspect that at Hetzner, this goes by the hour
Better scalability: At TransIP, we're using the penultimate configuration. Not so at Hetzer.

https://www.techradar.com/reviews/hetzner-online - All factors that are relevant to me, are part of their positive evaluation